题目内容

40×2= 44×2= 300×8= 12×6=
31×2= 32+48= 240×2= 600×8=
240-60= 120×4= 23+59= 450-70=
600-60= 70×7= 200+240= 50×7=
62-26= 90+160= 6×9+8= 7×8+6=
分析:根据整数加、减、乘、除的计算方法进行计算.
解答:
解:40×2=80 44×2=88 300×8=2400 12×6=72
31×2=62 32+48=80 240×2=480 600×8=4800
240-60=180 120×4=480 23+59=82 450-70=380
600-60=540 70×7=490 200+240=440 50×7=350
62-26=36 90+160=250 6×9+8=62 7×8+6=62
点评:本题综合考查了学生的计算能力.
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