直接写得数．
2/5﹣1/10= 16÷2/7= 1/2÷3/5= 1/7×1/7= 1/4×2/5=
5/6﹣1/2= 2/7×0+9= 3/5×1/21= 2/7×21= 14/17÷7=
1÷5﹣1/5= 4/7+4/7×6= （1/8+4/8）×4/5= 6×5÷1/2= 1/9÷1/3=
5/9×1/5÷5/9×1/5=
相关试题
直接写得数
| 28+82= |
130﹣107= |
62.7+3= |
6﹣0.65= |
| 1.8×3= |
（﹣2）+（﹣4）= |
 + = |
 × = |
 ÷5.75= |
0.6+ = |
6.3× = |
4.2÷ = |
 ×11= |
 ÷5= |
（+9）﹣（﹣5）= |
25×4%= |
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