题目内容
| 脱式计算,能简算的要简算 3.5×1.02+3.5×0.98 | 0.34×4÷8 |
| 0.65×201 | 21.6÷0.8-12.9. |
①3.5×1.02+3.5×0.98,
=3.5×(1.02+0.98),
=3.5×2,
=7;
②0.65×201,
=0.65×(200+1),
=130+0.65,
=130.65;
③0.34×4÷8,
=0.34×4÷8,
=1.36÷8,
=0.17;
④21.6÷0.8-12.9,
=27-12.9,
=14.1.
=3.5×(1.02+0.98),
=3.5×2,
=7;
②0.65×201,
=0.65×(200+1),
=130+0.65,
=130.65;
③0.34×4÷8,
=0.34×4÷8,
=1.36÷8,
=0.17;
④21.6÷0.8-12.9,
=27-12.9,
=14.1.
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