32X+88 = 3480 204-X+76 = 196 X-( 135-98)= 25 4X- 15 = 17

8× 125-40X = 600 0.4x÷5 = 0.6 2X+0.82 = 0.82 3+0.5X = 7

x+80×2 = 200 45-2X = 10+ 15 8×2.5-4x = 18 6÷( 1.5+x)= 1.5

4+x+3.9 = 15. 1x-0. 13-7.5 = 3.24 7.5×4.2-6x = 1.5 7.8x-x-6.6 = 7

0.5X+4 = 6 9.5x-5x = 13 3X+2.4 = 2.4 80x÷4 = 12

Second, list the equations and find their solutions.

1.60 is 30 times smaller than a number. What is the number?

2. Four times a number is more than 60. What's this number?

The difference between a number and 6.4 is divided by 3.6, and the quotient is 26. What's this number?

4. The number whose multiple of1.8 is less than 2 times is 1.96. How did you find this number?

5635 is more than four times a number. 35, find this number.

The difference between 6657 and 157 is five times that of a number. What's this number?

Third, calculate the following questions. (What can be simplified should be simplified)

9.56+ 14.5+5.5 14. 15+2.9+ 1.85 4.3+2.05+6.7+0.95

6.9+4.8+3. 1 0.456+6.22+3.78 15.89+(6.75-5.89)

4.02+5.4+0.98 5. 17- 1.8-3.2 13.75-(3.75+6.48)

3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6- 1.8- 15.6-7.2

3.82+2.9+0. 18+9. 1 9.6+4.8-3.6 7. 14-0.53-2.47

5.27+2.86-0.66+ 1.63 13.35-4.68+2.65 73.8- 1.64- 13.8-5.36

0.25× 16.2×4 3.6× 102 9.43-(6.28- 1.57)

3.72×3.5+6.28×3.5 36.8-3.9-6. 1 15.6× 13. 1- 15.6- 15.6×2. 1

4.8×7.8+78×0.52 6.4×0.25+3.6÷4 25.48-(9.4-0.52)

32+4.9-0.9 4.8-4.8×0.5 ( 1.25-0. 125)×8

4.8× 100. 1 56.5×9.9+56.5 7.09× 10.8-0.8×7.09

4.2÷3.5 320÷ 1.25÷8 18.76×9.9+ 18.76

3.52÷2.5÷0.4 4.78÷0.2+3.44 3.9-4. 1+6. 1-5.9

0.49÷ 1.4 1.25×2.5×32 3.6-0.6×2

3.65× 10. 1 3.6-3.6×0.8 15.2÷0.25÷4

5.6÷3.5 9.6÷0.8÷0.4 4.2×99+4.2 17.8÷( 1.78×4)

0.89× 100. 1 146.5-(23+46.5) 5.83×2+4.27 (45.9-32.7)÷8÷0. 125

3.83×4.56+3.83×5.44 4.36× 12.5×8 9.7×99+9.7

27.5×3.7-7.5×3.7 8.54÷2.5÷0.4 0.65× 10 1

3.2×0.25× 12.5 3. 14×0.68+3 1.4×0.032 5.6÷ 1.25÷0.8÷2.5÷0.4

7.2×0.2+2.4× 1.4 8.9× 1.0 1 7.74×(2.8- 1.3)+ 1.5×2.26

(4.8×7.5×8. 1)÷(2.4×2.5×2.7) 3.9×2.7+3.9×7.3+4 1

18- 1.8÷0. 125÷0.8 4.34×2.73+56.6×0.273 12.7×9.9+ 1.27

2 1×(9.3-3.7)-5.6 3.65×4.7-36.5×0.37 46×57+23×86

13.7×0.25-3.7÷4

Fourth, the application questions

1, a football is 46.8 yuan, which is three times cheaper than a volleyball. 1.2 yuan, what is the price of a volleyball?

2. Young Pioneers helped the library to repair books. The first group repaired 42 more books than the second group. The first group 18 people, each with an average of 6 copies. There are 12 people in the second group. How many copies did everyone repair on average?

3. Two cars, Party A and Party B, drive in opposite directions from City A at the same time. A car travels 55.5 kilometers per hour, and B car travels 34.5 kilometers per hour. A few hours later, the two cars were 270 kilometers apart.

4. Haihong Primary School has 10 12 students, and the number of boys is 1.2 times that of girls. How many more boys than girls?

The unit price of pens in shopping malls is 8 times that of pencils. Wang Mai Jr 1 pen and 3 pencils paid 15.4 yuan. How much are 1 pens and 1 pencils?

6. Miss Wang plans to use a square brick with a side length of 3 meters to lay the classroom, which will cost 720 yuan. Later it was replaced by a square brick with a side length of 4 cents. How many pieces do I need?

7. Cars travel 48 kilometers per hour, 2.2 times more than bicycles, 0.7 kilometers more. How many kilometers does the bicycle travel per hour?

8. Two road repair teams, Party A and Party B, built roads from both ends of the 4400-meter-long highway at the same time, and completed the task in 8 days. Team A repairs twice as many meters as team B every day. How many meters does Team B repair every day?

9. The unit price of pens in shops is 5.6 times that of pencils. Yang Li spent 8.28 yuan more on a pen than on a pencil. How much is a pen worth?

10. Eight trucks of cement were delivered on the construction site in the morning, and1/truck cement was delivered in the afternoon. In the afternoon, the cement payment was 3 180 yuan more than in the morning. How much did you pay this morning?

1 1. Wang Hua bought 12 exercise books with 50 yuan, each with 1.8 yuan, and bought 4 pens with the remaining money. How much is each pen?

12. The investment in the second phase of Shuisiheyuan is 3.86 million yuan, which is 640,000 yuan less than that in the first phase. How much is the first phase investment?

13. The students joined the interest group. There are 54 people in the painting group, which is twice as few as that in the dance group. How many people are in the dance group?

14. The area of the trapezoid is 180 square decimeter, its upper bottom is 15 decimeter, and its lower bottom is 2 1 decimeter. What is its height?

There are too many answers ... in fact, it's very simple. You can do it with your brain ...