谁有四年级下学期竖式计算和混合运算各50道啊?
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7 × 5/49 + 3/14

6 ×( 1/2 + 2/3 )

8 × 4/5 + 8 × 11/5

31 × 5/6 – 5/6

9/7 - ( 2/7 – 10/21 )

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 + 1/11 ÷ 1/2

5/3 × 11/5 + 4/3

45 × 2/3 + 1/3 × 15

7/19 + 12/19 × 5/6

1/4 + 3/4 ÷ 2/3

8/7 × 21/16 + 1/2

101 × 1/5 – 1/5 × 21

50+160÷40 (58+370)÷(64-45)

120-144÷18+35

(58+37)÷(64-9×5)

95÷(64-45)

178-145÷5×6+42 420+580-64×21÷28

812-700÷(9+31×11) (136+64)×(65-345÷23)

85+14×(14+208÷26)

(284+16)×(512-8208÷18)

120-36×4÷18+35

(58+37)÷(64-9×5)

(6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8

(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6

6-1.6÷4= 5.38+7.85-5.37=

7.2÷0.8-1.2×5= 6-1.19×3-0.43=

6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9

10.15-10.75×0.4-5.7

5.8×(3.87-0.13)+4.2×3.74

32.52-(6+9.728÷3.2)×2.5

-5+58+13+90+78-(-56)+50

-7*2-57/(3

(-7)*2/(1/3)+79/(3+6/4)

123+456+789+98/(-4)

369/33-(-54-31/15

39+{3x[42/2x(3x8)]}

9x8x7/5x(4+6)

11x22/(4+12/2)

94+(-60)/10

希望能满意!