五年级上册 数学 口算天天练 2

1. 直接写出得数。

2.3 × 6= 4.7 × 2 = 3.8 × 8 = 0.56×0.04= 2.4×6=

0.1 × 9.8 = 9.6 × 6 = 4.3 × 5 = 3.2×5= 2.6×1.08=

8.3 × 8 = 2.9 × 8 = 6.3 ×0.5 = 6.5×8= 0.29×0.07=

1.3 × 0.7 = 1.7 × 0.4 = 4.7 × 9 = 0.6×0.39= 3.5×6=

6.5 × 9 = 8.8 × 0.7 = 7.5 × 8 = 0.86×7= 3.7×0.6=

6.3 × 0.5 = 9.8 × 0.8 = 7.7 × 7 = 2.3×0.7 = 7.7×0.6=

6.7 × 0.6 = 1.1 × 7.3 = 3.9 × 0.8 = 3.8×0.6 = 27×0.04=

6.3 × 0.6 = 0.4 × 3.6 = 7.5 × 9 = 4.3×0.3 = 4.7×0.8 =

9.7 × 0.6 = 4.1 × 0.6 = 7.9 × 2 = 0.049×5= 0.37×0.4=

1.5 × 0.05 = 0.6 × 4.8 = 8.8 × 5 = 6.7×0.3= 12.5×4=

2. 用竖式计算：

28.6÷11=

6.3÷14=

34.5÷15=

20.4÷24=

1.26÷18=

3. 脱式计算，能简便的用简便方法计算。

2.35×4.64＋5.36×2.35

25.2÷12+2.9

43.5÷15－1.45

3.26×10.1－0.1×3.26

12.5×1.36×0.8

五年级上册 数学 口算天天练 1