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口算
14×5= 20×6= 16×50= 39-14= 450÷3=
250×3= 200-90= 60×130= 130×5= 2×380=
150×6= 43×70= 140×7= 280×3= 350×2=
250×3= 340×6= 3×250= 850×2= 5×270=
分析:根据整数加减乘除法的计算法则进行解答即可
解答:解:
14×5=60 20×6=120 16×50=800 39-14=25 450÷3=150
250×3=750 200-90=110 60×130=7800 130×5=650 2×380=760
150×6=900 43×70=3010 140×7=980 280×3=840 350×2=700
250×3=750 340×6=2040 3×250=750 850×2=1700 5×270=1350
点评:考查了整数加减乘除法的口算能力,注意认真解答.
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