3.5*1.2+0.35*88 (16.2-0.54)÷1.8⺁的简便计算?

liyannian2022-10-04 11:39:541条回答

3.5*1.2+0.35*88 (16.2-0.54)÷1.8⺁的简便计算?

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3.5*1.2+0.35*88
=0.35*12+0.35*88
=0.35*(12+88)
=0.35*100
=35
(16.2-0.54)÷1.8
=16.2÷1.8-0.54÷1.8
=9-0.3
=8.7
1年前

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