? I. Calculation questions (30 points)
1. Write grades directly (5 points)
160? 40= 76? 19= 148+252= 36+24? 4=
760-280= 640? 40= 450? 15= 6 1-63? 2 1=
2. Use vertical calculation (please use ☆) to check the problem (9 points).
48 1? 37= 3 15? 45= ☆782? 34=
249? 18= 962? 24= ☆ 600? 70=
3. Mixed operation. (12)
475+20? 8 90-75? 5 720? 8? nine
19? ( 100-78) (86+54)? 28 770? ( 14+2 1)
4. Simple calculation. (4 points)
( 1)540? 45 1200? 25? four
II. Fill in one blank (each blank 1 minute, ***24 points)
The average value of 1. can better reflect the () situation of a set of data.
2. Want to earn 53? The quotient of 48 is a single digit, and the maximum number in □ can be filled in (). Do you want to do 53? The quotient of 48 is a two-digit number, and the smallest of □ can be filled in ().
A bottle of mineral water is about () milliliters, and a washbasin is about () liters.
4.72 hours = () days 7000ml = () liters.
15L = () mL 5 liters -200mL = () mL
5. No, fill in the following ○? & gt& lt？ Or? =? .
25? 20? 10 ○ 25+20? 10 150- 100-25○ 150-( 100+25)
240? 60 ○ 24? 6 82-36? 12 ○ (84-36)? 12
30? 8+2 ○ 30? (8+2) 960? 24 ○ 960? 8? three
6. Count 272? At 36: 00, the first () bit of the dividend is not enough to quotient 1, so its quotient is () bit.
7. () The sum of 26 is 468. 72 1? ( )=20 1 .
8. The bar chart shows 20 people in two squares, and each square represents () people on average. According to this calculation, you need to draw () to represent 120 people.
9. Make a cuboid with two cubes of the same size, and you can see () different figures from the front, side and top.
10.★? Delta = 16 16, the minimum value of delta is (), and the minimum value of u is ().
Third, operational issues. (8 points)
1, connecting two formulas with equal numbers.
320? 16 480? 2? five
24? 18 320? 4? four
240? 5 28? four
60? 16 4? 16? 15
280? 40 24? 2? nine
Select one item (put the serial number of the correct answer in brackets, (5 points)
1, the capacity of a bathtub is about ().
A, 4 liters of B, 40 liters of C, 400 liters
2. If the remainder of the division formula is 35, then the divisor ().
A greater than 35 B equals 35 C and less than 35c
3、□35? The quotient of 48 is a two-digit number, and there are () cases where □ can be filled in the dividend.
A 4 B 5 C 6
4. release? 200- 130=70, 12? 70=840? Rewritten into a comprehensive formula is ().
A 200- 130? 12 B (200- 130)？ 12 C 12？ (200- 130)
Verb (abbreviation for verb) is it correct in brackets? , wrong number? , 5 points)
1, three digits divided by two digits, the quotient is not necessarily one digit. ()
2、480? (4? 6)=480? 4? 6 () 3. The water in a washbasin is about 100 ml. ( )
If the remainder is greater than the divisor, it means that the quotient is small and should be increased. ? ( )
5、570? 40= 14 1。 ? ( )
Six, solve the problem (28 points)
1. Li Gang needs 14 minutes from home to school. How many minutes does it take him to walk from home to the Children's Palace at the same speed? (4 points)
2. The school complex building site used 182 packages of cement for two weeks. (4 points)
(1). How many bales of cement are used on average every day? (2) According to the calculation results, complete the following table.
Cement packaging quantity 234 598
Project construction days 45
The specification of a bottle of liquid medicine is 600 ml. How many days can this bottle of liquid medicine be given to an 8-year-old child? (4 points)
In the singing contest, the judges gave Xiao Gan the following scores. (5 points)
Judge Jiang, Teacher Ding, Teacher Li, Teacher Zhuo, Teacher Fang, Teacher Wang and Teacher Liu.
Score 90 89 62 88 92 86 98
According to the rules of the game, a highest score and a lowest score should be removed. Can you calculate Xiao Gan's final average score?
5. The school bought 8 boxes of the same pens, each box 12, and used them to go to 480 yuan. How much is each pen? (4 points)
6. Lili collated the height data of Class One, Grade Four, and the results are as follows. (5 points)
Height (cm)120 ~129130 ~139140 ~149150 and above.
Number of people 7 16 12 8
(1) Complete the bar chart according to the data in the table.
Statistics on the Height of Class One Students in Grade Four
date month year
(1) The class has the largest number of people whose height is () cm, and the least number is () cm.
(1) Lili's height is 142 cm, and the order from high to short is around ().
(2) The height in winter and winter is just equal to the average height of the class, and his height is about () cm.
Seven, smart house: (2+3=5 points)
1, Xiao Hu is calculating? 40+□? 2? When, first add, then divide, the result is 50. Can you help him work out the correct figure for this problem?
2. The toy store newly bought 160 Olympic Fuwa from the wholesale market, each 72 yuan.
(1) How much does this store need to buy these Olympic Fuwa?
(2) If 140 Fuwa are all sold at the price of each 88 yuan, the rest are sold out at each 65 yuan. What is the sales volume of these Fuwa?
(3) According to the above scheme, how much can the merchants profit from this business?
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