题目内容
| 15-9= | 45÷5= | 9×6= | 3×6+3= |
| 76-67= | 35+18-35= | 32÷8= | 60-6= |
| 8×9+9= | 20÷4×7= |
解:
| 15-9=6, | 45÷5=9, | 9×6=54, | 3×6+3=21, |
| 76-67=9, | 35+18-35=18, | 32÷8=4, | 60-6=54, |
| 8×9+9=90, | 20÷4×7=35. |
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口算.
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(1)32 ×30= |
(2)210 ×4= |
(3)28 ×5= |
(4)40 ×200= |
|
(5)300 ×4= |
(6)70 ×21= |
(7)9 ×15= |
(8)45 ÷5= |