题目内容
怎样简便就怎样算.
| (1)8×6.05-8×3.05 | (2)10.15-10.08÷1.4 |
| (3)101×0.42 (4)1.08÷4.5÷0.2 | (5)1.5×30.2-7.26÷0.4. |
(1)8×6.05-8×3.05,
=8×(6.05-3.05),
=8×3,
=24;
(2)10.15-10.08÷1.4,
=10.15-7.2,
=2.95;
(3)101×0.42,
=(100+1)×0.42,
=100×0.42+1×0.42,
=42+0.42,
=42.42;
(4)1.08÷4.5÷0.2,
=1.08÷(4.5×0.2),
=1.08÷0.9,
=1.2;
(5)1.5×30.2-7.26÷0.4,
=45.3-18.15,
=27.15.
=8×(6.05-3.05),
=8×3,
=24;
(2)10.15-10.08÷1.4,
=10.15-7.2,
=2.95;
(3)101×0.42,
=(100+1)×0.42,
=100×0.42+1×0.42,
=42+0.42,
=42.42;
(4)1.08÷4.5÷0.2,
=1.08÷(4.5×0.2),
=1.08÷0.9,
=1.2;
(5)1.5×30.2-7.26÷0.4,
=45.3-18.15,
=27.15.
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