27÷3×7 3×6÷9 25÷5×8
45+8-23 63÷7×8 24-8+ 10
28÷4×7 35+24- 12 48÷8×9
9405-2940÷28×2 1 920- 1680÷40÷7 690+47×52-398
203- 135÷9 28+ 120×8 97- 12×6+43 26×4- 125÷5
148+3328÷64-75 360×24÷32+730 2 100-94+48×54
5 1+(2304-2042)×23 42 15+(436 1-7 16)÷8 1 (247+ 18)×27÷25
36-720÷(360÷ 18) 1080÷(63-54)×80 (528+9 12)×5-6 178
8528÷4 1×38-904 264+3 18-8280÷69 ( 174+209)×26- 9000
8 14-(278+322)÷ 15 1406+735×9÷45 3 168-7828÷38+504
796-5040÷(630÷7) 285+(3000-372)÷36 546×(2 10- 195)÷30
Text problem:
38. Fill in the blanks. (oral calculation)
(1) 130 plus the product of 20 and 5 gives the total ().
(2)7 divided by 280, minus 25, the difference is ().
(3) 100 minus the quotient of 240 divided by 8, the difference is ().
(4) The product of 8 and 25 plus 70 is ().
39. Column comprehensive formula calculation.
How much is (1)58 1 minus 6 72?
(2) What is 27 times 46 times 382?
(3) How much is1450 more than 69 16 times?
(4) What is the difference between 785 minus 1476 and 12?
40. Column comprehensive formula calculation.
(1) 1800 minus the product of 15 times 24, what's the difference?
(2) What is 434 plus 16 36?
(3) What is the product of15 times 18 divided by 27?
(4) What's the difference between 602 and 13 multiplied by 14 and 750?
4 1. Fill in the blanks.
(1) A number plus the sum of 45 times 5 gets 300, and this number is ().
(2) The difference between 90 and a number is divided by 450 to get 10, which is ().
(3)380 minus a number, 150 gets 350, which is ().
(4) 15 is 25 times the sum of a number, the product is 5000, and this number is ().
42. Column comprehensive formula calculation.
How much is the quotient of (1) 17 divided by 782 less than 150?
(2) How much is1030 more than the product of 28 times 35?
(3) How much is the difference between1240 and 740 and 295?
(4) How much is the difference between 47 times of18 and 1200?
43. Column comprehensive formula calculation.
What is the product of (1)26 times the difference between 98 and 59?
(2) What is the quotient of 3588 divided by the sum of 108 and 48?
(3) What is the difference between 765 and 387 multiplied by 24?
(4) What is the sum of 2319 and11311divided by 235?
44. Column comprehensive formula calculation.
What is the product of the difference between (1)42 times 39 1 and 145?
(2) What is the quotient of 27 divided by 3923 and 1234?
(3) What is the sum of 24 and 3 1 divided by 3630?
(4) What is the product of125 and 69 multiplied by 38?
45. Rewrite the following formula into words.
( 1) 1350- 14×27
(2)2852÷23- 1 15
(3) 132×(494-458)
(4) 1245÷(29+54)
46. choose Fill in the brackets with the serial number of the correct answer.
(1) 1749 minus the product of 46 times 38, what's the difference? The correct formula is [].
a . 1749-46×38 b .( 1749-46)×38
c . 1749-38×46d . 38×( 1749-46)
(2) What is the quotient of 36 divided by the sum of 18 and 450? The correct formula is [].
a . 36÷ 18+450 b . 18+450÷36
c . 36( 18+450)d .( 18+450)
47. Rewrite the following questions into two different narratives.
( 1) 160+368÷23
(2)64×27- 1325
(3)(403+59)×34
(4) 266÷( 14 1- 122)
48. Calculate the comprehensive formula in two ways.
The quotient of (1) 156 plus 39 1 divided by a number is 179. What's this number?
(2)764 minus the product of a number multiplied by 24, the difference is 332, what is this number?
(3)28 times 42 and the sum of a number, the product is 1652, what is this number?
(4) 1 12 Subtract a number and divide it by 900. The quotient is 36. What's this number?
49. Column comprehensive formula calculation.
What is the sum of (1) 292 and 269 multiplied by their difference?
(2) What is the quotient of14 25 divided by 84 minus 34?
(3) 14 1 Subtract the product of 12 and 1 1 and add 65. How much do you get?
(4) What is 273 plus 13 multiplied by 27 and divided by 26?
50. Column comprehensive formula calculation.
What is the product of (1) 260 minus 14 times 16 times 35?
(2) What is the sum of the difference between 542 and 329 and the quotient of 60 divided by 720?
(3) What is the quotient of 33 plus 345 divided by 23 and then divided by 624?
(4) 19 36 is less than 35 times of 24?
5 1. Rewrite the following items into text questions.
( 1)37×24-408÷ 12
(2)( 16+72)×(69-53)
(3) 105×( 143-62 1÷9)
(4)(75+ 105÷5)÷ 16
52. Calculate the comprehensive formula in two ways.
(1) 12 35 Subtract the quotient of a number divided by 8, and the difference is 380. What is this number?
(2)730 minus the difference of a number, plus the quotient of 16 divided by 224, the sum is 255. What's this number?
(3) The sum of a number and 17 is 32 times, and the product is 123 less than 89 1. What's this number?
(4) The difference between16 24 minus 234 is 25 times that of a number. What's this number?
53. Rewrite the following questions into two different narratives.
( 1) 18 1- 15×9+76
(2)564+3 15-672÷32
(3)44×(2 18- 102÷ 17)
(4)(303+ 150× 15)÷69
54. choose. (Fill in the serial number of the correct answer in brackets)
(1) 320 divided by the difference between 72 and 32, what is the quotient plus 65? The correct expression is [].
72-32+65
320 degrees Celsius (72-32 degrees) +65 degrees Celsius
(2) What is the product of the sum of 21and 12 multiplied by 47 and less than 2 100? The correct formula is [].
A.(2 1+ 12)×47-2 100 b . 2 100-(2 1+ 12)×47
c . 2 100-(2 1+ 12×47)d . 2 100-47×(2 1+ 12)
(3) How much is the difference between 345 and 225 divided by the quotient of 3600 more than 23? The correct formula is [].
A.(345-225+23)÷3600
3600 degrees (345-225 degrees) -23 degrees (345-225 degrees)
55. Column comprehensive formula calculation.
What is the difference between the sum of (1)24 and 15 multiplied by the product of 3 1 and 1500?
(2) How much is the quotient of 489 divided by 363 1 1?
(3) What is the ratio of1331less than 28 times of 23?
(4) What is17 plus 12 7s and then divided by 15 15?
56. Column comprehensive formula calculation.
What is the quotient of the sum of (1) 12 and 13 multiplied by the product of 14 and divided by 1750?
(2) Divide 16 by 2 10 and subtract 1 14. What is the product of quotient times 29?
(3) What is the quotient of 7 times 36 times the sum of 18 divided by 30?
(4) What is the product of 52 divided by 13 and 36 less than 180?
57. Calculate the comprehensive formula in two ways.
(1) The divisor is 24, the divisor is more than the quotient 1 1, and the remainder is 17. What is the dividend?
(2) The sum of divisor and quotient is 72, the remainder is 15, the divisor is 26, and what is the dividend?
(3) The dividend is 9 18, the divisor is 35, and the remainder is 27 less than the divisor. What is the quotient?
(4) The sum of the divisor and the remainder is 4 1, the divisor is 29, and the quotient is 3 more than the divisor. What is the dividend?
58. Column comprehensive formula calculation.
What is the sum of (1) 66 minus 18 times 24 plus 105?
(2) How much is the sum of 720 and 375 more than the product of 14 multiplied by 38?
(3)6 12 minus 403, minus 149, the difference divided by 120, what is the quotient?
(4) What is the product of17,24 and 15 multiplied by 29 less than 1800?
59. Calculate the following problem with the equation containing X. ※ 。
Multiply 1 1 by (1)24 and subtract a number, then divide by 15. The quotient is 8. What's this number?
(2) Add a number to the product of 3 1 and 9 and multiply it by 13 to get 3796. What's this number?
(3) Divide a number by the sum of 46 and 34 and multiply it by 52 to get 4 16. What's this number?
(4) Subtract a number from 14 times of 302 and divide it by 5 1 to get 34. What's this number?
60. choose. Fill in the brackets with the serial number of the correct answer.
The quotient of (1) is 15, the quotient is 9 less than the divisor, and the remainder is 1 1. What is the dividend? The correct formula is [].
A.( 15-9)× 15+ 1 1 b .( 15+9)× 15+ 1 1
C.( 15+9)× 15- 1 1d .( 15-9)× 15- 1 1
(2) Subtract the remainder from the divisor to get 13, the divisor is 28, the quotient is 5 more than the divisor, and what is the dividend []
a . 28×(28+5)+(28+ 13)b .(28+5)×28×(28- 13)
c . 28×(28-5)+(28- 13)d . 28×(28+5)+(28- 13)
Calculation of comprehensive formula of 61.train. ※.
The quotient of (1)6 divided by 300 minus 26, and the difference is multiplied by the sum of 24 and 15. What is the product?
(2) What's the difference between 72 plus 12 15 and 17 divided by 39 1?
(3) What is the quotient of 265 minus 5 times 45 and the sum of 152 plus 368?
(4) What is the quotient of the sum of 12 and 48 minus12 divided by 48 and multiplied by 50?
62. Calculation of column comprehensive formula. ※.
The quotient of (1)46 divided by 322, plus the product of 17 multiplied by 2 1. What is the quotient of the sum divided by 14?
(2)5 is divided by the sum of 72 and 18, and the quotient is added to 22, multiplied by 1 1. What is the result?
(3) 152 minus 92 times their sum, what is the quotient of the product divided by 80?
(4)2 1 divided by the sum of 103 and 23, and the quotient divided by the difference between 147 and 27. What is the result?
63. Rewrite the following formula into words. ※.
( 1)( 195÷ 13+25×7)÷5
(2) 16×( 19×4- 162÷ 18)
(3) 15×[26+64÷(59-43)]
(4)(43 1+69)÷[(234-34)÷40]
. Column comprehensive formula calculation. ※.
What is the product of (1)3 12 minus 2 13 times the sum of the largest two digits and the smallest two digits?
(2) What is the quotient of the sum of141plus 1 1 divided by the largest three digits?
(3) What is the result of subtracting the largest two digits from the smallest three digits and dividing by 492?
(4) What is the product of the difference between the smallest two digits plus four largest one digits and the largest three digits and 952?
1. A certain unit of the People's Liberation Army has to March 502 kilometers every day and start hiking for 60 kilometers. After walking for 3 days, the remaining distance is 20.5 kilometers per day. How many days will it take to finish it?
The rice in bag a weighs 68kg. After pouring 15kg from bag A into bag B, bag A is 5kg heavier than bag B ... How many kilograms of raw rice is there in bag B?
A steel mill produces 830 tons of steel every day for the first 3 days and 850 tons every day for the next 5 days. How many tons of steel is produced on average every day?
The motorcyclist traveled 60 kilometers at the speed of 20 kilometers per hour, and came back 30 kilometers per hour. What is the average speed of going back and forth?
5. Workers in the first workshop of a machine tool factory use 18 lathe to produce 720 machine parts in two hours. How many machine parts do 20 such lathes produce in three hours?
6. You can make120kg tofu with 30kg soybeans. According to this calculation, how many kilograms of soybeans do you need to make 600 kilograms of tofu?
An express train and an ordinary bus leave from two cities at the same time. The speed of express train is 90 kilometers per hour, and that of ordinary bus is 48 kilometers per hour. Two and a half hours later, two trains met on the road. How many kilometers is the railway between city A and city B?
8. The distance between the two places is 28 kilometers, and two cars, A and B, travel in the same direction from both places at the same time. A car travels 25 kilometers per hour, and B car travels 32 kilometers per hour. Car A is in the front and car B is in the back. How many hours will car B catch up with car A?
9. Cut a rectangular piece of paper with a length of 90 cm and a width of 20 cm into several square pieces of paper with the same size. It is required that the side length of a square is the largest, so as not to waste paper. How many squares can you cut?
10. In order to green the highway, the Bureau of Landscape Architecture planted a tree every 4 meters on both sides of a section of highway, and planted 74 trees at a time. Now it plans to plant a tree every 6 meters. So, how many trees will not be transplanted?
1 1, Party A has 14.8 yuan and Party B has 15.2 yuan. They want to buy a football together. The price of a football is twice their money. How much is a football? How much are they short of?
12. A machine plows 15 hectares in 3 hours. According to this calculation, how many hours does it take for five machines to plow 75 hectares?
13. There are 14 boxes of duck eggs in the store. Sold 250 kilograms, leaving 4 boxes of 20 kilograms. How many kilograms are there in each box of duck eggs?
14. bright primary school donated books to mountain students, with 240 books in grade four, twice as many as in grade five, and more books in grade six than in grade five 120. How many books did he donate per grade on average?
15. The grain store delivered 20 bags of rice and 20 bags of flour, each of which was 90kg of rice and 25kg of flour. How many kilograms more rice is brought in than flour? (Answer in two ways)
16. Two ropes * * * are 48.4m long. After cutting 6.4 meters from the first rope, the second rope is 6 meters more than the remaining two of the first rope. How long are the two ropes?
17. Students in Grade 4 and Grade 5 collect tree species, and the students in Grade 4 collect tree species 18.6 kg, and the students in Grade 4 collect 2.5 kg less than those in Grade 5. How many kilograms of tree species were collected in the second grade?
18. a workshop used to use 2450 kilowatts of electricity every month? At that time, after carrying out the saving activities, the electricity consumption of the original year can now be increased by two months. How many kilowatts does this workshop save electricity on average every month? What time?
19. The students took part in tree planting activities. 96 students in Grade 4 * * *, each of whom planted 3 trees. There are 87 people in the fifth grade, each of whom planted 4 trees. How many more trees were planted in the fifth grade than in the fourth grade?
20. Six students in the first group scored 86, 79, 98, 100, 89 and 94 respectively in the math test. What is their average score?
2 1. The car travels for 3 hours 135km, and the plane is 28 times faster than the car and flies 60km less. How many kilometers does this plane fly per hour?
A clothing factory produced 850 suits in five days. According to this calculation, how many suits are produced a month? (30 days a month)
23. The store delivered 8 baskets of apples, 12 baskets of pears, 38 kg of apples and 42 kg of pears in each basket. How many kilograms of fruit did this shop ship?
24. A construction site needs 240 tons of cement, which will be transported by five vehicles. Each car carries 3 tons at a time. How many times does it take to transport it? (There are two comprehensive solutions)
The distance between a and b is 750 kilometers. How many hours can a car drive at 50 kilometers per hour to reach B? (List the equations with unknowns and solve them again)
Obana Xiaolin has 12 pencils, and Xiaogang and Xiaohong have 20 pencils. How many pencils do they have on average?
27. In the third and fourth grades of a primary school, 620 trees should be watered. In the third grade, 40 trees should be watered every day for 8 days. The rest will be watered in the fourth grade. How many trees will be watered every day after five days?
28. Three looms weave 336 meters in four hours. According to this calculation, how many meters does 1 loom weave in eight hours?
29. The distance between Party A and Party B is 560 kilometers. One car travels from Party A to Party B at a speed of 48 kilometers per hour, and the other car travels from Party B to Party A at a speed of 32 kilometers per hour. What is the distance between the two cars after five hours?
-30. A section of highway was originally planned to be completed in 20 days. Actually, it was built 45 meters more than originally planned, and the task was completed five days ahead of schedule. How many meters was originally planned to be built every day?
Two ships, Party A and Party B, set sail from two ports 252km apart at the same time. Party A sailed at a speed of18km and Party B sailed at a speed of 24km. How many hours did the two ships meet? How many meters did Ship A walk when they met?
At the same time, the two trains depart from two stations 840 kilometers apart and meet after 7 hours. Do you know how many kilometers one train travels per hour and how many kilometers the other train travels per hour?
The school planted trees, and 84 trees were planted in the fourth grade, twice as many as in the third grade. The number of trees planted in the fifth grade is more than that planted in the third and fourth grades combined 18 trees. How many trees were planted in the fifth grade?
A and B are 720 kilometers apart, and two cars start from both places at the same time. Car A is driving at a speed of 50 kilometers per hour. After 6 hours, the distance between the two cars is still 60 kilometers. How many kilometers does bus B travel per hour?
The railway from Beijing to Tianjin is about 1000 meters long. A train leaves Beijing for Tianjin and returns to Beijing after a two-hour rest. It takes six hours. How many kilometers does this train run per hour on average?
The school bought 50 sets of desks and chairs, each with 78 yuan and each chair 15 yuan. How much did the school spend? How much is it more expensive to buy a table than a chair?
A flour mill can grind 62 kilograms of flour per hour. According to this calculation, how many kilograms of flour can five flour mills grind for six hours?
Xiaoming got 96 points, 100, 98 points and 100, 96 points in his five math exams. What is his average score?
Xiaoying bought two books at the price of 7.5 yuan and 9.8 yuan. She paid 20 yuan. How much should she get back?
This school donated books for Project Hope. 256 books were donated in the third grade, twice as many in the fourth grade as in the third grade, and 300 books were donated in the fifth grade than in the third and fourth grades. How many books did you donate in the fifth grade?
Four or five * * * planted 150 trees, and the fifth grade was twice that of the fourth grade, with 30 trees missing. How many trees were planted in the fourth and fifth grades?