口算：
15110+21260=
35110+22560=
52410+21260=
120000-115000=
256000-156000=
6523000-6421000=
相关试题
直接写出得出数．
| 42= |
23= |
0.5÷0.01= |
42×10%= |
| 3﹣2.07= |
 + = |
 ÷ = |
0÷23+7= |
| 0.9×99+0.9= |
0.25×18×4= |
口算：
15110+21260=
35110+22560=
52410+21260=
120000-115000=
256000-156000=
6523000-6421000=
直接写出得出数．
| 42= |
23= |
0.5÷0.01= |
42×10%= |
| 3﹣2.07= |
+= |
÷= |
0÷23+7= |
| 0.9×99+0.9= |
0.25×18×4= |
=
=
=
=
=
×
=
×2÷2=
=
÷
=
+
=
×
=
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