共30题用时5分钟

9.5×101=

3.8×10.1=

7×19+7=

7.69×101=

3.8×10.1=

5.98÷0.23=

22.8÷3=

0.125×72=

19.76÷5.2=

246.4÷13=

32÷42=

3.81÷7=

2.17÷0.7=

5.3+6.7=

0.4÷0.01=

30×0.01=

15÷1.5=

5.4-3.6-1.4=

8+2-8+2=

286+198=

2.8×1.4=

0.3×3.6＝

0.3×0.3＝

7.2×0.4=

526+301=

223-99=

314-202=

0.8×1.25＝

0.45×2.5＝

12.9-8.5=