列式计算.①0.6与0.9的积加上4

列式计算.①0.6与0.9的积加上4.8除以0.12的商,得多少?②用1.32与0.24的差去除6.48,商是多少?③0.98与0.14的和比14个0.28少多少?

①0.6×0.9+4.8÷0.12,
=0.54+40,
=40.54,
答:得40.54;

②6.48÷(1.32-0.24),
=6.48÷1.08,
=6,
答:商是6;

③0.28×14-(0.98+0.14),
=3.92-1.12,
=2.8,
答:少2.8.
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