四年级下册脱式计算小数简便算法

这样的题目很多，举例如下：

4.1×67.2+4.8

9.42×2.1+4.6

8.24×5.4+6.4

1.2×0.4+7.8

3.08×7.5+4.3

4.17-3.5×2.6

4.1×85.1+7.4

1.25×9.01+0.3

84.4+1.4×5.2

4.27×0.35+4.8

9-3.6×1.25 8×0.4-2.1

5.2×4.3+8.7

9.4×7.2-7.4

6.04×1.04+8.4

4.81×2.4+1.02

8.04×9.4-0.46

7.05-2.4×5.4

7.42-3.15×0.23

24.5×0.21-2

4.78+0.28×5.1

27.1×0.3+5.8

9.04×0.4+3.6

4.1×0.6+9.4

2.7+7.3×2.01

3.48×0.24+8.6

8.14-2.3×0.42

7.5×2.4-3.4

7.1×9.4-4.07

5.12-8.14×2.1

4.12×1.08-0.25

0.45×2.8-0.04