五年级数学计算练习

1.解方程

2.8÷x=40               (x-4.5)×6=31.8              x÷1.6=2.5

 (100-3x)÷4=2.5          8x-3x=10.5                 2.6-x=0.4

6x+3=39                  1.2x+5x=186             (100-4x)÷8=3

2.脱式计算(能简便的要用简便方法计算)。

2.5×(1.3-5.46)            4.23+4.23×99              7.4+2.6×4

1.25×3.2               201×6.5-6.5          18.9-7.5×(0.14+1.06)

53.14-18.84÷6          0.8×3.9 ×1.25            0.28÷14+2×0.16

1.5×104          7.6+(2.44-1.8)÷0.4              7.2×2.5-0.2×2.5

48×0.25×0.125       28×0.05+9.6 ÷16        2.6+7.4 ÷(16.2-15.7)