16.2×101-16.2的简便运算

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16.2×101-16.2的简便运算

16.2×101-16.2的简便运算
16.2×101-16.2的简便运算

16.2×101-16.2的简便运算
16.2×101-16.2
=16.2x(100+1)-16.2
=16.2x100+16.2-16.2
=1620


16.2×101-16.2=16.2×(101-1)=16.2×100=1620

16.2×101-16.2
=16.2×101-16.2×1
=16.2×(101-1)
=16.2×100
=1620

16.2*101-16.2
=16.2*101-16.2*1
=16.2*(101-1)
=1620