Can the fifth grade score unbalanced calculation problem bring the answer? The unbalanced calculation of the next grade score is as follows:
408- 12×24 = 408 - 288 = 120
(46+28)×60 = 74×60 = 4440
42×50- 17 = 2 100- 17 = 2083
32+ 105÷5 = 32 + 2 1 = 53
420×(327-238) = 420 x 89 = 37380
(4 12 1+2389)÷7 = 65 10 ÷7 = 930
3.4 16÷(0.0 16×35) = 3.4 16 ÷0.56 = 6. 1
0.8×[( 10-6.76)÷ 1.2]= 0.8 x(3.24÷ 1.2)= 0.8 x 2.7 = 2. 16
5.67×0.2-0.62 = 1. 134-0.62 = 0.5 14
0.4×0.7×0.25 = 0.4×0.25×0.7 = 0. 1×0.7 = 0.07
0.78+5.436+ 1 = 6.2 16 + 1 = 7.2 16
30.8÷[ 14-(9.85+ 1.07)] = 30.8 ÷ ( 14 - 10.92) = 30.8÷3.08 = 10
[60-(9.5+28.9)]÷0. 18 = (60- 38.4)÷0. 18 = 2 1.6 ÷0. 18 = 120
2.88 1÷0.43-0.24×3.5 = 6.7-0.24 x 3.5 = 6.7-0.84 = 5.86
3/4+ 1/6-2/3= 1/4
7/8- 1/4+4/9=77/72
1- 1/3+2/7=20/2 1
1/2+4/5-3/ 10= 1
5/6-(2/3- 1/9)=5/ 18
9/ 10-(3/4+ 1/8)= 1/40
1/2+2/3-3/4=5/ 12
7/8- 1/6+ 1/4=23/24
1-(3/4-2/9)= 17/36
9/ 10- 1/5- 1/2= 1/5
1/4+3/7+ 1/2=33/28
7/8-(2/3+ 1/6)= 1/24
1-( 1/3+3/5)= 1/ 15
1/2+ 1/4+ 1/3= 13/ 12
7/8+ 1/4+ 1/2=5/8
5/7-(4/7+ 1/9)=2/63
1- 1/4- 1/2= 1/4
3/4- 1/6- 1/3= 1/4
3/ 10+ 1/4+2/5= 19/20
2/3+ 1/6+ 1/ 12= 1 1/ 12
1- 1/4-2/5=7/20
1/2+ 1/9+ 1/ 12=25/36
125×(97-8 1)= 125 x 16 = 2000
6942+480÷3 = 6942 + 160 = 6782
20+80÷4-20 = 20 + 20 -20 = 40 -20 = 20
100÷(32-30)×0 = 100÷2 x0 = 50x 0 = 0
After calculating the recursive equation in grade five, there are three steps to find the formula, no answer, no repetition and no score. . 125*3+ 125*5+25*3+25
2.9999*3+ 10 1* 1 1*( 10 1-92)
3.(23/4-3/4)*(3*6+2)
4.3/7 × 49/9 - 4/3
5.8/9 × 15/36 + 1/27
6. 12× 5/6 – 2/9 ×3
7.8× 5/4 + 1/4
8.6÷ 3/8 – 3/8 ÷6
9.4/7 × 5/9 + 3/7 × 5/9
10.5/2 -( 3/2 + 4/5 )
1 1.7/8 + ( 1/8 + 1/9 )
12.9 × 5/6 + 5/6
13.3/4 × 8/9 - 1/3
14.7 × 5/49 + 3/ 14
15.6 ×( 1/2 + 2/3 )
16.8 × 4/5 + 8 × 1 1/5
17.3 1 × 5/6 – 5/6
18.9/7 - ( 2/7 – 10/2 1 )
19.5/9 × 18 – 14 × 2/7
20.4/5 × 25/ 16 + 2/3 × 3/4
Find 60 fifth grade score calculation problems. (There are formulas and answers) 1, 2× 4 of 80 = 2/20 =110.
2, 9 7×3=7/3
3,2× 5 of 25 = 2/5
7× 140= 14 in 4.70.
3×7 = 2 1/5 of 5.5
6, 7 8×7=8
7, 2 7×9=63/2
8, 9 7×2= 14/9
9, 2×2= 1.
10, 14 7×4= 14/7=2
1 1, 4× 5 of 20 =1
12,8× 2 of 7 =16/7
13, 1×2= 1/4.
14, 1× 100 = 1/ 100.
15,268 points 1×4= 1/67
16, 2 = 3/960 in 3÷480.
17, 2/4 ÷ 2 = 1/4
18, 1÷8= 1/40.
19, 10 6÷2=3/ 10
20, 4 7÷8=7/32
3 ÷ 6 in 2 1 56 =1112.
5÷ 1 = 5/37 in 22,37
8 ÷ 2 of 23,7 = 4/7
24, 9 7÷3=7/27
25, 65438+3/00 ÷ 5 = 3/50
26, 5/9 = 1/9
27, 4/8 ÷ 8 = 4
28, three quarters ÷ 5 = 3/20
29, 9 4÷2=2/9
30, 23 7÷6=7/ 138
3 1, 4/5+8/5 = 12/5
1 = 1
33, 3/4+65438/8+0 = 7/8
34, 4/7+2/8 = 46/56 = 23/28
35,7 7+ 10/0 point1= 36/10 =18/5.
8 = 7 of 36,7+7 and 8 of 7.
37, 7/5+3/5 = 2
38, 9+3/4 = 9+3/4
39, 1+ 1= 1/2.
65438 in 40.8+0+65438 in 7+0 =13/56.
4 1, 7 of 6+7 1 = 55/42.
42, 1+2/6 = 1 and 1.
5 of 43,7+5 of 65438+0 = 32/35
44, 6/5+4/3 = 38/ 15
45, 5 of 1+7 =1and 5 of 7.
65438 in 46.5+0-65438 in 6+0 =1/30.
47, 4 8- 1= 1
48, 3/5- 1=2/5
49, 1= 1/ 10.
50, 1-8 part 1=7/8
5 1, 8/3 to 1=37/ 15.
52, 8-2 1= 15/2
53, 7/5-3/4 = 13/20
54, 2-2 19= 1/2
55, 1- 1=0.
56, 7/9-3/4 = 1/36
57, 9/5- 1 = 4/5
8+0 of 50-65438 of 58,72 = 41/72.
4-3 of 59,9 =1/9
60,48 points 16-5 points 1=2/ 15
Are there any examples of fractional addition and subtraction with different denominators in the fifth grade? If you are not taught the method, whether it is addition or subtraction, you should try to turn the denominator into the same denominator, that is, try to find the least common multiple of the two denominators, so that you can add and subtract the numerator. Such as 2/5+5/6.
The lowest common multiple of denominators 5 and 6 is 30, so 2/5 times 6 to get 12/30, and 5/6 times 5 to get 25/30.
So 12/30+25/30=37/30.
Addition and subtraction are almost the same.
Baidu knows that most of the five decimal places are people who answer questions, so it is difficult to find a question. I suggest you look for it in Baidu Library.
Fifth grade addition and subtraction points with different denominators: meblog. /user 1/ 1053/archives/2008/47563 . s。
The fifth grade decimal problem is1.125× 3+125× 5+25× 3+25.
2.9999×3+ 10 1× 1 1×( 10 1-92)
3.(23/4-3/4)×(3×6+2)
4.3/7 × 49/9 - 4/3
5.8/9 × 15/36 + 1/27
6. 12× 5/6 – 2/9 ×3
7.8× 5/4 + 1/4
8.6÷ 3/8 – 3/8 ÷6
9.4/7 × 5/9 + 3/7 × 5/9
10.5/2 -( 3/2 + 4/5 )
1 1.7/8 + ( 1/8 + 1/9 )
12.9 × 5/6 + 5/6
13.3/4 × 8/9 - 1/3
14.7 × 5/49 + 3/ 14
15.6 ×( 1/2 + 2/3 )
16.8 × 4/5 + 8 × 1 1/5
17.3 1 × 5/6 – 5/6
18.9/7 - ( 2/7 – 10/2 1 )
19.5/9 × 18 – 14 × 2/7
20.4/5 × 25/ 16 + 2/3 × 3/4
2 1. 14 × 8/7 – 5/6 × 12/ 15
22. 17/32 – 3/4 × 9/24
23.3 × 2/9 + 1/3
24.5/7 × 3/25 + 3/7
25.3/ 14 ×× 2/3 + 1/6
26. 1/5 × 2/3 + 5/6
27.9/22 + 1/ 1 1 ÷ 1/2
28.5/3 × 1 1/5 + /3
29.45 × 2/3 + 1/3 × 15
30.7/ 19 + 12/ 19 × 5/6
3 1. 1/4 + 3/4 ÷ 2/3
32.8/7 × 2 1/ 16 + 1/2
33. 10 1 × 1/5 – 1/5 × 2 1
34.50+ 160÷40
35. 120- 144÷ 18+35
36.347+45×2-4 160÷52
37(58+37)÷(64-9×5)
38.95÷(64-45)
39. 178- 145÷5×6+42
40.8 12-700÷(9+3 1× 1 1)
4 1.85+ 14×( 14+208÷26)
43. 120-36×4÷ 18+35
44.(58+37)÷(64-9×5)
45.(6.8-6.8×0.55)÷8.5
46.0. 12× 4.8÷0. 12×4.8
47.(3.2× 1.5+2.5)÷ 1.6
48.6- 1.6÷4= 5.38+7.85-5.37=
49.7.2÷0.8- 1.2×5= 6- 1. 19×3-0.43=
50.6.5×(4.8- 1.2×4)=
5 1.5.8×(3.87-0. 13)+4.2×3.74
52.32.52-(6+9.728÷3.2)×2.5
53.[(7. 1-5.6)×0.9- 1. 15] ÷2.5
54.5.4÷[2.6×(3.7-2.9)+0.62]
55. 12×6÷( 12-7.2)-6
56. 12×6÷7.2-6
57.0.68× 1.9+0.32× 1.9
58.58+370)÷(64-45)
59.420+580-64×2 1÷28
60. 136+6×(65-345÷23)
15- 10.75×0.4-5.7
62. 18. 1+(3-0.299÷0.23)× 1
63.(6.8-6.8×0.55)÷8.5
64.0. 12× 4.8÷0. 12×4.8
65.(3.2× 1.5+2.5)÷ 1.6
66.3.2×6+( 1.5+2.5)÷ 1.6
67.0.68× 1.9+0.32× 1.9
68. 10. 15- 10.75×0.4-5.7
69.5.8×(3.87-0. 13)+4.2×3.74
70.32.52-(6+9.728÷3.2)×2.5
7 1.[(7. 1-5.6)×0.9- 1. 15] ÷2.5
72.5.4÷[2.6×(3.7-2.9)+0.62]
73. 12×6÷( 12-7.2)-6
74. 12×6÷7.2-6
75.33.02-( 148.4-90.85)÷2.5
76.(25%-695%- 12%)*36
77./4*3/5+3/4*2/5
78. 1- 1/4+8/9/7/9
79.+ 1/6/3/24+2/2 1
80./ 15*3/5
8 1.3/4/9/ 10- 1/6
82./3+ 1/2)/5/6- 1/3]/ 1/7
83./5+3/5/2+3/4
84.(2-2/3/ 1/2)]*2/5
86.3+456-52*8
87.5%+6325
Ask a lot of sixth grade math questions, as long as they are calculation questions, don't answer them! Fill in the blanks. (25)
1, 93 million and 57 are written in (), and the mantissa after omitting 1 100 million is about ().
2. To reduce the denominator of to its, the molecular strain should be () and the score should be ().
3, (), it has () such decimal units, and then minus () such decimal units is the smallest prime number.
4. The circumference of a circle is directly proportional to its diameter (), and their ratio is ().
5. The number A is 8, the number B is 5, the number A is greater than the number B ()%, and the number B is less than the number A ()%.
6, chickens and rabbits in the same cage, chickens have M, rabbits have K, * * * has a head (), * * * has feet ().
7. There were () days in the first quarter of 2008 and () days throughout the year.
8. 1.25 hours = () 3 tons and 4 kilograms = () tons.
250 hectares = () square kilometers
56 liters = () cubic centimeters
9. Fill in the blanks according to the rules.
( 1) 1,8,27,( ), 125,( )。
(2)3,6,9, 15,24,( ),63,( )。
Second, judge. ( 10)
1. The area of a circle is proportional to its radius. ( )
2. The size of the angle is related to the opening angle of the angle and the length of both sides of the angle. ( )
3. It takes Party A 5 hours and Party B 8 hours to process a part, and the efficiency ratio between Party A and Party B is 8: 5. ( )
4. The diameter of the semicircle is10cm, and the circumference is15.7cm.. ( )
5. Cylinders and cones with equal bottoms and heights are smaller than cylinders. ( )
Third, calculation. (Simplify what can be simplified) (18)
① 12.5×32 ② 1 1.25×4.8- 12.5×0.48
③967×96+967+3×967
Fifth, the application problem. (35)
1. The length of the cuboid is 180 cm, and the aspect ratio is 4: 3: 2. How many cubic centimeters is the volume of this cuboid? (5)
2. The bottom area of the cylindrical iron block is 3 14 square decimeter and the height is 15 decimeter. Cast this iron block into a cone with a bottom diameter of 3 minutes. What is the height of this cone in decimeters?
There is a batch of goods, the first time 40 tons, the second time 7 tons exceeded 20% of the total, and there are 53 tons left. How many tons are there in this shipment?
4. For a job, it takes 8 hours for A to do it alone, and the effect of B is 3 times that of A. B does it for 2 hours, and the rest is done by both parties. How many hours will it take?
5. A cuboid with length, width and height of 12cm, 9cm and 6cm respectively. Now cut this cuboid into the largest cylinder. How many cubic centimeters is the volume of this cylinder?
6. There is a pile of candy, of which milk candy accounts for 45%. After adding 16 piece of fruit candy, milk candy only accounts for 25%. How many pieces are there in this pile of toffee?
Fill in the blanks. (2 points for each question, ***20 points)
1, a number consists of 400 million, 56 million and 3007 tens. This number is pronounced (), and the mantissa after omitting hundreds of millions of digits is about ().
2、9:6= =( )÷42= =( )%。
3. 3.2 hours = () hours () 8 tons and 70 kilograms = () tons.
0.85 cubic decimeter = () liter = () ml
4. Move the decimal point of a number one place to the right and then two places to the left, and the obtained number is ()% of the original number.
Lili's mother is 59 years old, 26 years older than Lili. Ten years later, Lili is () years old.
6. The average score of Xiao Ming's first three math exams is 90, and the average score of the fourth math exam is 98. The average score of his four exams is ().
7. The length-width ratio of the rectangle is 3:2, the circumference is 60 cm, and the area is ().
There are 48 students in class 8.6 (1) today, 1 is sick, 1 is on leave. The attendance rate of Class Six (1) today is ().
9. Arrange 0,-,-and 0.25 in descending order ().
10. In a proportion, the product of two external terms is 1, one internal term is 10, and the other internal term is ().
Second, judge. (Mark "√" for the right and "×" for the wrong, 5 points)
1. Master Wang made 102 pieces, of which 100 pieces were qualified, and the qualified rate was 100%. ( )
2. If 253 is divisible by 3, at least add 5. ( )
3. The smaller the denominator, the smaller the decimal unit. ( )
4. If the number of A equals the number of B, the ratio of A to B is 2:3. ( )
5. If there are five Saturdays and Sundays in April, then April 1 should be Saturday. ( )
Third, multiple choice questions. (Fill the letter before the correct answer in brackets, 5 points)
1, rectangles, squares and circles with equal perimeters, in which () has the smallest area.
A, rectangle b, square c, circle
2. A pesticide, the liquid medicine accounts for 20% of the liquid medicine, and the ratio of Chinese medicine to water in this pesticide is ().
a、 1:5 B、 1:3 C、 1:4
3, a number divided by a, quotient 3 remainder 1, this number is ()
a、3a+ 1 B、3a- 1 C 、( a- 1)÷3
4, a is a number greater than 0, the following calculation results are greater than a ().
a、a \b、a× C、a \u 1
5. Wang Qiang deposited RMB 65,438+0,000 in the bank for two years, with an annual interest rate of 4.68%. He paid 5% interest tax two years later.
The formula for the interest earned should be ().
a、 1000×4.68%×2×( 1-5%)+ 1000
b 、[ 1000×4.68%×( 1-5%)+ 1000]×2
c、 1000×4.68%×2×( 1-5%)
Fourth, calculation. (***38 points)
1, a number written directly. (5 points)
- ×0 = - × = 4.88÷0.7≈ ÷ = 3 ×0+0.7=
8- ÷6= 1- 1%= 3.2 hours -50 minutes = 0.4: = 6.3 meters: 900 cm =
2. Calculation can be simplified. (12)
( 1)[ ÷( + )]- (2)( 1÷ + ÷ 1)÷
(3)( + )×29×23 (4)2.6×35 + 64× + 2.6
3. Seek the unknown value. (9 points)
①0.8× -2ⅹ=0 ② (ⅹ-7)÷5= 14 ③ 4: = ⅹ:
4. Column calculation. (9 points)
(1) 40% of a number is less than the largest two digits 1. Find this number.
(2) What are the quotient of addition and division, sum, multiplication and product?
(3) The difference between 24 and 2 is equal to 40% of a number. What's this number?
There is a process in the fifth grade score calculation, and the answer is 0.25×8.6×4.
89+456-78
5%+.3/7 × 49/9 - 4/3
9 × 15/36 + 1/27
2× 5/6 – 2/9 ×3
3× 5/4 + 1/4
94÷ 3/8 – 3/8 ÷6
95/7 × 5/9 + 3/7 × 5/9
6/2 -( 3/2 + 4/5 )
8 + ( 1/8 + 1/9 )
8 × 5/6 + 5/6
1/4 × 8/9 - 1/3
10 × 5/49 + 3/ 14
1.5 ×( 1/2 + 2/3 )
2/9 × 4/5 + 8 × 1 1/5
3. 1 × 5/6 – 5/6
4/7 - ( 2/7 – 10/2 1 )
19 × 18 – 14 × 2/7
5 × 25/ 16 + 2/3 × 3/4
4 × 8/7 – 5/6 × 12/ 15
7/32 – 3/4 × 9/24
2/3÷ 1/2- 1/4×2/5
2-6/ 13÷9/26-2/3
2/9+ 1/2÷4/5+3/8
10÷5/9+ 1/6×4
1/2×2/5+9/ 10÷9/20
5/9×3/ 10+2/7÷2/5
1/2+ 1/4×4/5- 1/8
3/4×5/7×4/3- 1/2
23-8/9× 1/27÷ 1/27
8×5/6+2/5÷4
1/2+3/4×5/ 12×4/5
8/9×3/4-3/8÷3/4
5/8÷5/4+3/23÷9/ 1 1
3/7 × 49/9 - 4/3
8/9 × 15/36 + 1/27
12× 5/6 – 2/9 ×3
8× 5/4 + 1/4
6÷ 3/8 – 3/8 ÷6
4/7 × 5/9 + 3/7 × 5/9
5/2 -( 3/2 + 4/5 )
7/8 + ( 1/8 + 1/9 )
9 × 5/6 + 5/6
3/4 × 8/9 - 1/3
7 × 5/49 + 3/ 14
6 ×( 1/2 + 2/3 )
8 × 4/5 + 8 × 1 1/5
3 1 × 5/6 – 5/6
9/7 - ( 2/7 – 10/2 1 )
5/9 × 18 – 14 × 2/7
4/5 × 25/ 16 + 2/3 × 3/4
14 × 8/7 – 5/6 × 12/ 15
17/32 – 3/4 × 9/24
3 × 2/9 + 1/3
5/7 × 3/25 + 3/7
3/ 14 ×× 2/3 + 1/6
1/5 × 2/3 + 5/6
9/22 + 1/ 1 1 ÷ 1/2
5/3 × 1 1/5 + 4/3
45 × 2/3 + 1/3 × 15
7/ 19 + 12/ 19 × 5/6
1/4 + 3/4 ÷ 2/3
8/7 × 2 1/ 16 + 1/2
10 1 × 1/5 – 1/5 × 2 1