Division in 1. table

(1) average score: each share has the same amount, which is called average score.

(2) Two methods of average division: ① Divide some projects into several parts; ② Divide some items into several parts; (3) Application of division: ① Divide a number into several parts on average and find out how much each part is.

(2) find a number, how many.

(4) The method of finding the quotient with the multiplication formula of 2 ~ 9: the divisor multiplied by () equals the dividend, and what is the quotient. (5)

Quotient = dividend/divisor = dividend/quotient

Dividend = quotient× divisor Dividend = quotient× divisor+remainder (6)

Solving mathematical problems in shopping by division unit price × quantity = total price

Total Price-Unit Price = Total Purchase Quantity-Quantity = Unit Price

2. Mixed operation

(1) Operation sequence of mixed operation (it is required to draw a horizontal line under the previous operation)

(1) In the formula without brackets, only addition and subtraction or only multiplication and division are calculated from left to right. ② In the formula without brackets, if there are multiplication and division and addition and subtraction, the multiplication and division should be calculated first, and then the addition and subtraction should be calculated. ③ If there are brackets in the formula, count the brackets first.

(2) enumerate comprehensive formulas to solve mathematical problems in life: if a problem needs multiple steps to solve, you must first think about what to calculate first and then what to calculate. If you need to add and subtract first, then multiply and divide, then add and subtract in brackets.

3. Division with remainder

(1) Relationship between remainder and divisor: the remainder must be less than the divisor.

(2) Find the maximum remainder and subtract 1 from the divisor, and the minimum remainder is 1. (3) Using division with remainder to solve mathematical problems in life;

(1) when solving the problem of ship (car) and housing, if there is surplus, add 1. ② When solving the shopping problem, if there is any surplus, remove it.

(3) When solving the problem of regular sorting, it is the key to find out the arrangement law (using circle-by-circle method). What is the remainder after calculating the result by division? If the remainder is 0, it is the last one in each group.

4. Understanding of numbers within 10,000

(1) 10 one is ten, 10 ten is one hundred, 10 one hundred is one thousand; 10 One thousand is ten thousand.

(2) In the numerical sequence table: from the right, the first digit is the unit, the second digit is the tenth digit, the third digit is the hundredth digit, the fourth digit is the thousand digits, and the fifth digit is the ten thousand digits.

(3) Composition of numbers within 10,000: Numbers within 10,000 consist of thousands, hundreds, ten and one.

(4) How to read the number within ten thousand: from a high position, the number of thousands is several thousand, the number of hundreds is several hundred, and the number of tens is several.

Read dozens and several places; There is a zero or two zeros in the middle, and only one "zero" is read; No matter how many zeros there are at the end, don't read them.

(5) How to write the number within 10,000: from the high position, write a few for thousands, write a few for hundreds, write a few for ten, and write a few for one; There is no one in the middle or at the end, just write 0 in that bit.

(6) Counting with an abacus: choose the one on the right as the unit on the abacus, and the ones on the left are ten, one hundred, one thousand and ten thousand.

When pulling beads, the lower bead means 1 and the upper bead means 5.

(7) Comparison of numbers within 10,000: Compare the digits first, and the number with more digits will be larger; If the numbers are the same, start with the highest number.

Bit by bit comparison.

5. Motion of graphics (1)

(1) Symmetry phenomenon and axisymmetric figure: Symmetry refers to the phenomenon that the left and right sides are exactly the same. If a graph is arranged along a straight line.

After folding, the parts on both sides of the crease can completely overlap, and such a figure is an axisymmetric figure. The straight line where the crease lies is called the symmetry axis.

(2) Translation phenomenon: When an object moves in translation, only its position changes, but its shape, size and direction have not changed. (3) Rotation phenomenon: When an object rotates, its shape and size remain unchanged, but its direction changes.

6. grams and kilograms

(1) "gram" and "kilogram": indicate the weight of the article, and the mass units of gram and kilogram can be used. Lightweight items, commonly used

In grams (g), a 2-cent coin weighs about1g. For heavier items, the unit is usually "kg", and the weight of two bags of salt is 1 kg.

(2) Conversion between grams and kilograms: 1kg = 1000g.

7. Mathematical Wide Angle

Simple reasoning: simple reasoning about multiple things, generally determining the most direct answer according to the meaning of the question, and then determining other answers through exclusion.

The math problem 17-9 in the second volume of the second grade of primary school is that half the weight of pears is 8 kilograms.

Then the pear is 2 * 8 = 16kg.

17- 16 is a box of 1 kg.

I don't know if these questions are difficult ... but I hope they can help you ... and hope to adopt them.

1. The school bought three basketballs and * * * spent 96 yuan; I bought another football and spent 40 yuan. How much does it cost to buy a basketball and a football? What is the difference in unit price between the two kinds of balls?

Wang Xia bought a story book with 140 pages and has read 86 pages. The rest of the plan will be completed in six days. How many pages do you need to read every day?

There are 58 story books and 34 popular science books in the library corner of the class. How many books do you want to put on a four-story bookshelf?

4. Uncle Wang went into the county and sold 9 rabbits, each 22 yuan. Also sell 1 sheep, get 160 yuan. (1) How much did Uncle Wang spend on his rabbit and sheep? (2) Wang bought four bottles of pesticides with the money from selling rabbits and sheep, each bottle was 13 yuan. How much money does Uncle Wang have left?

5. A coat 65 yuan, a pair of pants 28 yuan. (1) How much is it more expensive to buy four coats than four pairs of trousers? (2)1Is it enough for 50 yuan to buy two sets of clothes?

6. There are two identical rectangles with a length of 8 decimeters and a width of 4 decimeters. If you put them together into a rectangle, what is the circumference of the rectangle? What is the circumference of a square if it is spelled into a square?

7. The circumference of the rectangular playground is 400 meters, and its length is three times its width. What is the length and width of this playground?

8. A pair of China chess 16 yuan, a pair of checkers 12 yuan, and a pair of Go is three times the sum of a pair of China chess and a pair of checkers. Xiao Ming takes 80 yuan, is it enough to buy a pair of Go?

9. Cut a rectangular piece of paper with a length of 36 cm and a width of 18 cm into two largest squares. What is the circumference of a square?

10. A rope is 25 meters long. Cut 10 meter first, and make a short jump rope every two meters for the rest. How many short jump ropes can you make? How many meters are left?

24 points for questions 2, 4, 6 and 8 in the second grade of primary school Answer:

1: 2 ÷ 4 × 6 × 8

2: (2 ÷ 4) × 6 × 8

3: (2 ÷ 4 × 6) × 8

4: ((2 ÷ 4) × 6) × 8

5: 2 ÷ 4 ×(6 × 8)

6: (2 ÷ 4) × (6 × 8)

7: (2 ÷ (4 ÷ 6)) × 8

8: 2 ÷ (4 ÷ 6) × 8

9: 2 ÷ (4 ÷ (6 × 8))

10: 2 ÷ (4 ÷ 6 ÷ 8)

1 1: 2 ÷ ((4 ÷ 6) ÷ 8)

12: 2 ÷ 4 × 8 × 6

13: (2 ÷ 4) × 8 × 6

14: (2 ÷ 4 × 8) × 6

15: ((2 ÷ 4) × 8) × 6

16: 2 ÷ 4 ×(8 × 6)

17: (2 ÷ 4) × (8 × 6)

18: (2 ÷ (4 ÷ 8)) × 6

19: 2 ÷ (4 ÷ 8) × 6

20: 2 ÷ (4 ÷ (8 × 6))

2 1: 2 ÷ (4 ÷ 8 ÷ 6)

22: 2 ÷ ((4 ÷ 8) ÷ 6)

23: (2 + 6) × 4 - 8

24: ((2 + 6) × 4) - 8

25: 2 × 6 + 4 + 8

26: (2 × 6) + 4 + 8

27: (2 × 6 + 4) + 8

28: ((2 × 6) + 4) + 8

29: 2 × 6 +(4 + 8)

30: (2 × 6) + (4 + 8)

3 1: 2 × 6 ÷ 4 × 8

32: (2 × 6) ÷ 4 × 8

33: (2 × 6 ÷ 4) × 8

34: ((2 × 6) ÷ 4) × 8

35: (2 × (6 ÷ 4)) × 8

36: 2 × (6 ÷ 4) × 8

37: 2 × (6 ÷ 4 × 8)

38: 2 × ((6 ÷ 4) × 8)

39: 2 × (6 ÷ (4 ÷ 8))

40: 2 × 6 ÷(4 ÷ 8)

4 1: (2 × 6) ÷ (4 ÷ 8)

42: 2 × 6 + 8 + 4

43: (2 × 6) + 8 + 4

44: (2 × 6 + 8) + 4

45: ((2 × 6) + 8) + 4

46: 2 × 6 +(8 + 4)

47: (2 × 6) + (8 + 4)

48: (2 × (6 + 8)) - 4

49: 2 × (6 + 8) - 4

50: 2 × 6 × 8 ÷ 4

5 1: (2 × 6) × 8 ÷ 4

52: (2 × 6 × 8) ÷ 4

53: ((2 × 6) × 8) ÷ 4

54: (2 × (6 × 8)) ÷ 4

55: 2 × (6 × 8) ÷ 4

56: 2 × (6 × 8 ÷ 4)

57: 2 × ((6 × 8) ÷ 4)

58: 2 × (6 × (8 ÷ 4))

59: 2 × 6 ×(8 ÷ 4)

60: (2 × 6) × (8 ÷ 4)

6 1: (2 + 8 ÷ 4) × 6

62: (2 + (8 ÷ 4)) × 6

63: 2 × 8 ÷ 4 × 6

64: (2 × 8) ÷ 4 × 6

65: (2 × 8 ÷ 4) × 6

66: ((2 × 8) ÷ 4) × 6

67: (2 × (8 ÷ 4)) × 6

68: 2 × (8 ÷ 4) × 6

69: 2 × (8 ÷ 4 × 6)

70: 2 × ((8 ÷ 4) × 6)

7 1: 2 × (8 ÷ (4 ÷ 6))

72: 2 × 8 ÷(4 ÷ 6)

73: (2 × 8) ÷ (4 ÷ 6)

74: (2 × (8 + 6)) - 4

75: 2 × (8 + 6) - 4

76: 2 × 8 × 6 ÷ 4

77: (2 × 8) × 6 ÷ 4

78: (2 × 8 × 6) ÷ 4

79: ((2 × 8) × 6) ÷ 4

80: (2 × (8 × 6)) ÷ 4

8 1: 2 × (8 × 6) ÷ 4

82: 2 × (8 × 6 ÷ 4)

83: 2 × ((8 × 6) ÷ 4)

84: 2 × (8 × (6 ÷ 4))

85: 2 × 8 ×(6 ÷ 4)

86: (2 × 8) × (6 ÷ 4)

87: 4 + 2 × 6 + 8

88: (4 + 2 × 6) + 8

89: (4 + (2 × 6)) + 8

90: 4 + (2 × 6) + 8

9 1: 4 + (2 × 6 + 8)

92: 4 + ((2 × 6) + 8)

93: (4 × (2 + 6)) - 8

94: 4 × (2 + 6) - 8

95: 4 + 6 × 2 + 8

96: (4 + 6 × 2) + 8

97: (4 + (6 × 2)) + 8

98: 4 + (6 × 2) + 8

99: 4 + (6 × 2 + 8)

100: 4 + ((6 × 2) + 8)

10 1: (4 × (6 + 2)) - 8

102: 4 × (6 + 2) - 8

103: (4 × (6 - 2)) + 8

104: 4 × (6 - 2) + 8

105: 4 + 8 + 2 × 6

106: (4 + 8) + 2 × 6

107: 4 + (8 + 2 × 6)

108: 4 + (8 + (2 × 6))

109: 4 + 8 +(2 × 6)

1 10: (4 + 8) + (2 × 6)

1 1 1: 4 × 8 -(2 + 6)

1 12: (4 × 8) - (2 + 6)

1 13: 4 × 8 - 2 - 6

1 14: (4 × 8) - 2 - 6

1 15: (4 × 8 - 2) - 6

1 16: ((4 × 8) - 2) - 6

1 17: 4 + 8 + 6 × 2

1 18: (4 + 8) + 6 × 2

1 19: 4 + (8 + 6 × 2)

120: 4 + (8 + (6 × 2))

12 1: 4 + 8 +(6 × 2)

122: (4 + 8) + (6 × 2)

123: 4 × 8 -(6 + 2)

124: (4 × 8) - (6 + 2)

125: 4 × 8 - 6 - 2

126: (4 × 8) - 6 - 2

127: (4 × 8 - 6) - 2

128: ((4 × 8) - 6) - 2

129: (6 + 2) × 4 - 8

130: ((6 + 2) × 4) - 8

13 1: (6 - 2) × 4 + 8

132: ((6 - 2) × 4) + 8

133: 6 × 2 + 4 + 8

134: (6 × 2) + 4 + 8

135: (6 × 2 + 4) + 8

136: ((6 × 2) + 4) + 8

137: 6 × 2 +(4 + 8)

138: (6 × 2) + (4 + 8)

139: 6 × 2 ÷ 4 × 8

140: (6 × 2) ÷ 4 × 8

14 1: (6 × 2 ÷ 4) × 8

142: ((6 × 2) ÷ 4) × 8

143: (6 × (2 ÷ 4)) × 8

144: 6 × (2 ÷ 4) × 8

145: 6 × (2 ÷ 4 × 8)

146: 6 × ((2 ÷ 4) × 8)

147: 6 × (2 ÷ (4 ÷ 8))

148: 6 × 2 ÷(4 ÷ 8)

149: (6 × 2) ÷ (4 ÷ 8)

150: 6 × 2 + 8 + 4

15 1: (6 × 2) + 8 + 4

152: (6 × 2 + 8) + 4

153: ((6 × 2) + 8) + 4

154: 6 × 2 +(8 + 4)

155: (6 × 2) + (8 + 4)

156: 6 × (2 + 8 ÷ 4)

157: 6 × (2 + (8 ÷ 4))

158: 6 × 2 × 8 ÷ 4

159: (6 × 2) × 8 ÷ 4

160: (6 × 2 × 8) ÷ 4

16 1: ((6 × 2) × 8) ÷ 4

162: (6 × (2 × 8)) ÷ 4

163: 6 × (2 × 8) ÷ 4

164: 6 × (2 × 8 ÷ 4)

165: 6 × ((2 × 8) ÷ 4)

166: 6 × (2 × (8 ÷ 4))

167: 6 × 2 ×(8 ÷ 4)

168: (6 × 2) × (8 ÷ 4)

169: (6 ÷ (4 - 2)) × 8

170: 6 ÷ (4 - 2) × 8

17 1: 6 ÷ ((4 - 2) ÷ 8)

172: 6 ÷ 4 × 2 × 8

173: (6 ÷ 4) × 2 × 8

174: (6 ÷ 4 × 2) × 8

175: ((6 ÷ 4) × 2) × 8

176: 6 ÷ 4 ×(2 × 8)

177: (6 ÷ 4) × (2 × 8)

178: (6 ÷ (4 ÷ 2)) × 8

179: 6 ÷ (4 ÷ 2) × 8

180: 6 ÷ (4 ÷ (2 × 8))

18 1: 6 ÷ (4 ÷ 2 ÷ 8)

182: 6 ÷ ((4 ÷ 2) ÷ 8)

183: 6 ÷ 4 × 8 × 2

184: (6 ÷ 4) × 8 × 2

185: (6 ÷ 4 × 8) × 2

186: ((6 ÷ 4) × 8) × 2

187: 6 ÷ 4 ×(8 × 2)

188: (6 ÷ 4) × (8 × 2)

189: (6 ÷ (4 ÷ 8)) × 2

190: 6 ÷ (4 ÷ 8) × 2

19 1: 6 ÷ (4 ÷ (8 × 2))

192: 6 ÷ (4 ÷ 8 ÷ 2)

193: 6 ÷ ((4 ÷ 8) ÷ 2)

194: (6 + 8) × 2 - 4

195: ((6 + 8) × 2) - 4

196: 6 × 8 × 2 ÷ 4

197: (6 × 8) × 2 ÷ 4

198: (6 × 8 × 2) ÷ 4

199: ((6 × 8) × 2) ÷ 4

200: (6 × (8 × 2)) ÷ 4

20 1: 6 × (8 × 2) ÷ 4

202: 6 × (8 × 2 ÷ 4)

203: 6 × ((8 × 2) ÷ 4)

204: 6 × (8 × (2 ÷ 4))

205: 6 × 8 ×(2 ÷ 4)

206: (6 × 8) × (2 ÷ 4)

207: 6 × (8 ÷ 4 + 2)

208: 6 × ((8 ÷ 4) + 2)

209: 6 × (8 ÷ (4 - 2))

2 10: 6 × 8 ÷(4 - 2)

2 1 1: (6 × 8) ÷ (4 - 2)

2 12: 6 × 8 ÷ 4 × 2

2 13: (6 × 8) ÷ 4 × 2

2 14: (6 × 8 ÷ 4) × 2

2 15: ((6 × 8) ÷ 4) × 2

2 16: (6 × (8 ÷ 4)) × 2

2 17: 6 × (8 ÷ 4) × 2

2 18: 6 × (8 ÷ 4 × 2)

2 19: 6 × ((8 ÷ 4) × 2)

220: 6 × (8 ÷ (4 ÷ 2))

22 1: 6 × 8 ÷(4 ÷ 2)

222: (6 × 8) ÷ (4 ÷ 2)

223: 8 × 2 ÷ 4 × 6

224: (8 × 2) ÷ 4 × 6

225: (8 × 2 ÷ 4) × 6

226: ((8 × 2) ÷ 4) × 6

227: (8 × (2 ÷ 4)) × 6

228: 8 × (2 ÷ 4) × 6

229: 8 × (2 ÷ 4 × 6)

230: 8 × ((2 ÷ 4) × 6)

23 1: 8 × (2 ÷ (4 ÷ 6))

232: 8 × 2 ÷(4 ÷ 6)

233: (8 × 2) ÷ (4 ÷ 6)

234: 8 + 2 × 6 + 4

235: (8 + 2 × 6) + 4

236: (8 + (2 × 6)) + 4

237: 8 + (2 × 6) + 4

238: 8 + (2 × 6 + 4)

239: 8 + ((2 × 6) + 4)

240: 8 - (2 - 6) × 4

24 1: 8 - ((2 - 6) × 4)

242: 8 × 2 × 6 ÷ 4

243: (8 × 2) × 6 ÷ 4

244: (8 × 2 × 6) ÷ 4

245: ((8 × 2) × 6) ÷ 4

246: (8 × (2 × 6)) ÷ 4

247: 8 × (2 × 6) ÷ 4

248: 8 × (2 × 6 ÷ 4)

249: 8 × ((2 × 6) ÷ 4)

250: 8 × (2 × (6 ÷ 4))

25 1: 8 × 2 ×(6 ÷ 4)

252: (8 × 2) × (6 ÷ 4)

253: 8 + 4 + 2 × 6

254: (8 + 4) + 2 × 6

255: 8 + (4 + 2 × 6)

256: 8 + (4 + (2 × 6))

257: 8 + 4 +(2 × 6)

258: (8 + 4) + (2 × 6)

259: 8 - (4 × (2 - 6))

260: 8 - 4 ×(2 - 6)

26 1: 8 × 4 -(2 + 6)

262: (8 × 4) - (2 + 6)

263: 8 × 4 - 2 - 6

264: (8 × 4) - 2 - 6

265: (8 × 4 - 2) - 6

266: ((8 × 4) - 2) - 6

267: (8 ÷ 4 + 2) × 6

268: ((8 ÷ 4) + 2) × 6

269: (8 ÷ (4 - 2)) × 6

270: 8 ÷ (4 - 2) × 6

27 1: 8 ÷ ((4 - 2) ÷ 6)

272: 8 ÷ 4 × 2 × 6

273: (8 ÷ 4) × 2 × 6

274: (8 ÷ 4 × 2) × 6

275: ((8 ÷ 4) × 2) × 6

276: 8 ÷ 4 ×(2 × 6)

277: (8 ÷ 4) × (2 × 6)

278: (8 ÷ (4 ÷ 2)) × 6

279: 8 ÷ (4 ÷ 2) × 6

280: 8 ÷ (4 ÷ (2 × 6))

28 1: 8 ÷ (4 ÷ 2 ÷ 6)

282: 8 ÷ ((4 ÷ 2) ÷ 6)

283: 8 + 4 + 6 × 2

284: (8 + 4) + 6 × 2

285: 8 + (4 + 6 × 2)

286: 8 + (4 + (6 × 2))

287: 8 + 4 +(6 × 2)

288: (8 + 4) + (6 × 2)

289: 8 + (4 × (6 - 2))

290: 8 + 4 ×(6 - 2)

29 1: 8 × 4 -(6 + 2)

292: (8 × 4) - (6 + 2)

293: 8 × 4 - 6 - 2

294: (8 × 4) - 6 - 2

295: (8 × 4 - 6) - 2

296: ((8 × 4) - 6) - 2

297: 8 ÷ 4 × 6 × 2

298: (8 ÷ 4) × 6 × 2

299: (8 ÷ 4 × 6) × 2

300: ((8 ÷ 4) × 6) × 2

30 1: 8 ÷ 4 ×(6 × 2)

302: (8 ÷ 4) × (6 × 2)

303: (8 ÷ (4 ÷ 6)) × 2

304: 8 ÷ (4 ÷ 6) × 2

305: 8 ÷ (4 ÷ (6 × 2))

306: 8 ÷ (4 ÷ 6 ÷ 2)

307: 8 ÷ ((4 ÷ 6) ÷ 2)

308: 8 + (6 - 2) × 4

309: 8 + ((6 - 2) × 4)

3 10: 8 + 6 × 2 + 4

3 1 1: (8 + 6 × 2) + 4

3 12: (8 + (6 × 2)) + 4

3 13: 8 + (6 × 2) + 4

3 14: 8 + (6 × 2 + 4)

3 15: 8 + ((6 × 2) + 4)

3 16: (8 + 6) × 2 - 4

3 17: ((8 + 6) × 2) - 4

3 18: 8 × 6 × 2 ÷ 4

3 19: (8 × 6) × 2 ÷ 4

320: (8 × 6 × 2) ÷ 4

32 1: ((8 × 6) × 2) ÷ 4

322: (8 × (6 × 2)) ÷ 4

323: 8 × (6 × 2) ÷ 4

324: 8 × (6 × 2 ÷ 4)

325: 8 × ((6 × 2) ÷ 4)

326: 8 × (6 × (2 ÷ 4))

327: 8 × 6 ×(2 ÷ 4)

328: (8 × 6) × (2 ÷ 4)

329: 8 × (6 ÷ (4 - 2))

330: 8 × 6 ÷(4 - 2)

33 1: (8 × 6) ÷ (4 - 2)

332: 8 × 6 ÷ 4 × 2

333: (8 × 6) ÷ 4 × 2

334: (8 × 6 ÷ 4) × 2

335: ((8 × 6) ÷ 4) × 2

336: (8 × (6 ÷ 4)) × 2

337: 8 × (6 ÷ 4) × 2

338: 8 × (6 ÷ 4 × 2)

339: 8 × ((6 ÷ 4) × 2)

340: 8 × (6 ÷ (4 ÷ 2))

34 1: 8 × 6 ÷(4 ÷ 2)

342: (8 × 6) ÷ (4 ÷ 2)

In the second grade of primary school, there are 2504 math problems, with about 2500 people.

Find the math application problem in the second volume of the second grade of primary school: Wen Ku. Baidu, please. /view/c 37ee 638376 BAF 1 ffc 4 fadb 7。 From = rec&pos = 0 & weight = 8189 & las weight = 2 160 & amp； Count =5

Teacher Wang took 8000 yuan, spent 6387 yuan on a computer and 986 yuan on a printer. How much is left?

2. Students in Grade Three and Grade Four collected 65 kilograms of tree species, while students in Grade Three collected 6 bags of 5 kilograms each. How many kilograms did they collect in grade four?

3. The TV factory produced 274 TV sets in the morning and 196 TV sets in the afternoon. If 5 10 TV sets were produced on the third day, how many TV sets were produced on the first day compared with the second day?

4. The classroom needs to buy 48 sets of desks and chairs. The teacher went to the mall with 400 yuan's money. He selected each set of tables and chairs with 9 yuan money. Did he bring enough money?

5. The library * * has 1200 books, which are placed on three shelves on average, and each shelf has four floors. How many books are there on average on each floor?

6. A chicken can lay an egg every day. Grandma Wang keeps 15 hens and 5 cocks. How many eggs can she lay a week?

7. The students took four buses to visit the exhibition, with an average of 45 people in each bus. Before leaving, I added 56 classmates. How many people went there?

8. I bought 4000 Jin of flour, ate some, and left three bags of 25 Jin each. How many kilograms did you eat?

9. The school bought 8 boxes of books, each with 80 books, which were distributed to 5 grades on average. How many books are distributed in each grade?

10, the weight of walnuts purchased by the agricultural and sideline products purchasing station is twice that of jujube, 480 kilograms of jujube, and how many kilograms of walnut kernel jujube?

The second volume of primary school mathematics is the final examination paper of the second volume of primary school mathematics.

Class: _ _ _ _ _ _ Name: _ _ _ _ _ Score: _ _ _ _ _ _ _

Fill in the blanks. (22%)

(1)2040 is pronounced as (); Eight thousand six hundred words writing ().

(2) The number of 5,400 is (), which is pronounced as ().

(3) Distribute 20 pencils to 5 children on average, and each child can get () pencils.

(4) The two numbers adjacent to 1500 are () and ().

(5) The largest four digits are () and the smallest three digits are ().

(6)54÷9= (), and the formula used in the calculation is ().

(7) 1 kg = () g 7000 g = () kg.

(8) The highest digit of 5086 is (), which means five (). Make up a four-digit number and make up 5086. The largest four digits are ().

(9) Iron 1 kg, cotton 1 kg, () weight.

(10) Fill in the appropriate units in ().

① A bag of rice weighs 20() ② An egg weighs 50 ().

(1 1) Fill in ">", "

500+400 999 2856 2658 24÷6 32÷8

Second, calculation.

1, oral calculation. (24%)

34+8= 48+35= 39+ 19=

24-6= 27- 17= 35-30=

500+500= 2600-600= 1300+400=

5000+600= 800+200= 4000+6000=

90+70= 46- 16= 75-50=

8×5= 9×4= 7×6=

25÷5= 64÷8= 54÷9=

6×4-4= 7×7+7= 85-(25+20)=

2. Use vertical calculation. (9%)

560+250= 640-280= 380+220=

360+ 170= 870-530= 530- 180=

3. Column calculation. ( 12%)

(1) Divide 30 into 6 parts on average. How much is each part? (2) How many times is 72 9?

(3) What is the number five times eight? (4) Subtract a number from 450 to get 250. How much did you lose?

Third, fill in the blanks and draw pictures. ( 1 1%)

(1) Right angle, acute angle, obtuse angle, () minimum.

(2) 1、7、 13、 19、25、3 1、( )、( )。

(3)○□△⊙ ⊙○□△ △⊙○□ ( )( )( )( )。

(4) Draw the figures that will be translated up by 4 grids and left by 6 grids respectively.

Fourth, the following is the statistical table of students' donations in Class One, Grade Three. (3%)

Group one, group two, group three and group four.

Quantity (RMB) 45 27 30 40

(1) () Groups donate the most; One group donated () yuan more than the other.

(2) The whole class donated () yuan.

Verb (abbreviation of verb) application problem

1

2

(3) Buy three toy cars to go to 24 yuan. (6%)

① How much does it cost to buy a 1 toy car?

How much does it cost to buy seven toy cars?

(4) A basket of oranges, packed in a bag every 8 kilograms, has 2 kilograms left after 5 bags. How many kilograms is this basket of oranges? (5%)

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What is the key content of the final review of the second grade mathematics in primary school? The primary task of review is to consolidate and deepen the understanding and memory of what you have learned. First of all, we should determine a central content according to the knowledge system of the textbook, focusing on the center, key points and difficulties of the textbook. We will never relax until we really understand it. Secondly, we should consolidate in time to prevent forgetting. It is best to review before forgetting, if you forget, the efficiency will be low. Review regularly and don't catch cold at once.