题目内容
计算
2.08÷0.4×0.7;
40-7.5×3;
5.5×12.7+5.5×7.3.
2.08÷0.4×0.7;
40-7.5×3;
5.5×12.7+5.5×7.3.
(1)2.08÷0.4×0.7,
=5.2×0.7,
=3.64;
(2)40-7.5×3,
=40-22.5,
=17.5;
(3)5.5×12.7+5.5×7.3,
=(12.7+7.3)×5.5,
=20×5.5,
=110.
=5.2×0.7,
=3.64;
(2)40-7.5×3,
=40-22.5,
=17.5;
(3)5.5×12.7+5.5×7.3,
=(12.7+7.3)×5.5,
=20×5.5,
=110.
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