共30题用时5分钟

1.8+0.28 =

0.7× 4 =

3.8+5.6=

5.04×2.1=

1.8× 4.5=

13.5× 6 =

3.25×0.98 =

0.75×2.3 =

0.75×0.5=

3.6×0.09=

22.6×0.33=

3.5×0.1＝

0.42×0.6＝

12-1.2＝

1.3×0.5＝

0.21×0.3＝

200×0.04＝

3.2×0.5=

8.4×0.26=

7.38×1.6=

5.5×17.3=

5.5×11＝

2.5-1.37=

0.73×2.15=

6.7×5.5=

0.8×3.2=

5×4.8＝

0.5×0.7 =

1.5×4＝

0.75＋0.8＝