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Three hundred math problems
If you have multiple-choice questions, fill in the blanks by yourself.

1. If (x+y): (x-y) = 3: 1, then x: y = ().

a、3∶ 1 B、2∶ 1 C、 1∶ 1 D、 1∶2

2. If the solution of equation -2x+ m=-3 is 3, then the value of m is ().

a、6 B、-6 C、D、- 18

3. In the equation 6x+ 1= 1, 2x=, 7x- 1=x- 1, 5x=2-x, the number of solving equations is ().

a, 1 b,2 c,3 d,4

4. According to the quantitative relationship of "the difference between the absolute value of 3 times a and -4 is equal to 9", equation () can be obtained.

a 、|3a-(-4)|=9 B 、|3a-4|=9

c、3|a|-|-4|=9 D、3a-|-4|=9

5. If the solution of the equation =4(x- 1) about x is x=3, then the value of a is ().

a、2 B、22 C、 10 D 、-2

[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)

68/2 1-8- 1 1*8+6 1

-2/9-7/9-56

4.6-(-3/4+ 1.6-4-3/4)

1/2+3+5/6-7/ 12

[2/3-4- 1/4*(-0.4)]/ 1/3+2

22+(-4)+(-2)+4*3

-2*8-8* 1/2+8/ 1/8

(2/3+ 1/2)/(- 1/ 12)*(- 12)

(-28)/(-6+4)+(- 1)

2/(-2)+0/7-(-8)*(-2)

18-6/(-3)*(-2)

(5+3/8*8/30/(-2)-3

(-84)/2*(-3)/(-6)

- 1+2-3+4-5+6-7

-50-28+(-24)-(-22)

- 19.8-(-20.3)-(+20.2)- 10.8

0.25- +(- 1 )-(+3 )

- 1-〔 1-( 1-0.6÷3)〕×〔2-(-3)×(-4)〕

0÷(-4)-42-(-8)÷(- 1)3

-32-(-3) 2-(-3)3+(- 1)6

3×(-2)2+(-2×3)2+(-2+3)2

(- 12)÷4×(-6)÷2

(- 12)÷4×(-6)×2

75÷〔 138÷( 100-54)〕

80400-(4300+870÷ 15)

1437×27+27×563

〔75-( 12+ 18)〕÷ 15

2 160÷〔(83-79)× 18〕

280+840÷24×5

325÷ 13×(266-250)

85×(95- 1440÷24)

58870÷( 105+20×2)

1437×27+27×563

8 1432÷( 13×52+78)

[37.85-(7.85+6.4)] ×30

156×[( 17.7-7.2)÷3]

(947-599)+76×64

36×(9 13-276÷23)

-(3.4 1.25×2.4)

(3 1.8 3.2×4)÷5

194-64.8÷ 1.8×0.9 36.72÷4.25×9.9

3.4 16÷(0.0 16×35)

0.8×[( 10-6.76)÷ 1.2]

( 136+64)×(65-345÷23)

(6.8-6.8×0.55)÷8.5

0. 12× 4.8÷0. 12×4.8

(58+37)÷(64-9×5)

8 12-700÷(9+3 1× 1 1)

120-36×4÷ 18+35

(284+ 16)×(5 12-8208÷ 18)

9.72× 1.6- 18.305÷7

4/7÷[ 1/3×(3/5-3/ 10)]

(4/5+ 1/4)÷7/3+7/ 10

12.78-0÷( 13.4+ 156.6 )

37.8 12-700÷(9+3 1× 1 1)

( 136+64)×(65-345÷23)

3.2×( 1.5+2.5)÷ 1.6

85+ 14×( 14+208÷26)

(58+37)÷(64-9×5)

(6.8-6.8×0.55)÷8.5

(284+ 16)×(5 12-8208÷ 18)

0. 12× 4.8÷0. 12×4.8

(3.2× 1.5+2.5)÷ 1.6

120-36×4÷ 18+35

10. 15- 10.75×0.4-5.7

5.8×(3.87-0. 13)

+4.2×3.74 347+45×2-4 160÷52

32.52-(6+9.728÷3.2)×2.5 87(58+37)÷(64-9×5)

[(7. 1-5.6)×0.9- 1. 15] ÷2.5 (3.2× 1.5+2.5)÷ 1.6

5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷( 12-7.2)-6

3.2×6+( 1.5+2.5)÷ 1.6 (3.2× 1.5+2.5)÷ 1.6

5.8×(3.87-0. 13)+4.2×3.74

33.02-( 148.4-90.85)÷2.5