题目内容
| 40×3= | 90×5= | 300×4= | 400×2= | 60×7= | 50×8= | 9×600= | 700×3= | 70×2= | 20×6= | 900×3= | 8×200= |
分析：根据整数乘法的计算方法进行解答即可．
解答：解：
| 40×3=120 | 90×5=450 | 300×4=1200 | 400×2=800 |
| 60×7=420 | 50×8=400 | 9×600=5400 | 700×3=2100 |
| 70×2=140 | 20×6=120 | 900×3=2700 | 8×200=1600 |
点评：此题考查了整数乘法的口算能力，注意认真计算即可．
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