问题
解答题
0.25×16.2×4
3.6×102
3.72×3.5+6.28×3.5．
答案
①0.25×16.2×4
=（0.25×4）×16.2
=1×16.2
=16.2；
②3.6×102
=3.6×100+3.6×2
=360+7.2
=367.2；
③3.72×3.5+6.28×3.5
=（3.72+6.28）×3.5
=10×3.5
=35．
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0.25×16.2×4
3.6×102
3.72×3.5+6.28×3.5．
①0.25×16.2×4
=（0.25×4）×16.2
=1×16.2
=16.2；
②3.6×102
=3.6×100+3.6×2
=360+7.2
=367.2；
③3.72×3.5+6.28×3.5
=（3.72+6.28）×3.5
=10×3.5
=35．
