6×3= 18÷6= 45+32= 500+300=
360-80= 50+800= 9×6= 72÷8=
5×9= 360-30= 730-700= 6×7=
分析:根據(jù)整數(shù)加減法口算的方法,以及乘法口訣進行計算.
解答:解:
6×3=18, 18÷6=3, 45+32=77, 500+300=800,
360-80=280, 50+800=850, 9×6=54, 72÷8=9,
5×9=45, 360-30=330, 730-700=30, 6×7=42.
故答案為:18,3,77,800,280,850,54,9,45,330,30,42.
點評:本題考查了簡單的計算,要熟練運用乘法口訣計算乘法和除法.
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