共30题用时5分钟

5.3×42=

5.24×0.99=

8.6×0.7=

3×1.21=

0.7×0.57=

0.03×0.12=

3×0.121=

12×0.03=

16.73×2.5=

7.6×0.23=

7.3×5=

8.53×0.99 =

8.6×18=

5.8×2.9=

5.8×0.29=

0.1×0.2＝

1.4×15=

1.42×18=

99×0.35＝

3.57×5＝

4.2×0.1＝

0.36×12＝

0.05×0.8＝

1.23×3＝

7.5×2.5×4＝

1.7×0.43 =

1.2×0.4=

5.43×0.86=

78.58×3.7=

1.3×0.4＝