题目内容
| 选择你喜欢的方法计算 6.53+2.47×20 | 16×5.8+5.2×16-16 |
| 1.04÷0.26-(3.8+0.2) | 105-18.4÷2.5-14. |
①6.53+2.47×20
=6.53+49.4
=55.93;
②16×5.8+5.2×16-16
=16×(5.8+5.2-1)
=16×10
=160;
③1.04÷0.26-(3.8+0.2)
=1.04÷0.26-4
=4-4
=0;
④105-18.4÷2.5-14
=105-7.36-14
=97.64-14
=83.64.
=6.53+49.4
=55.93;
②16×5.8+5.2×16-16
=16×(5.8+5.2-1)
=16×10
=160;
③1.04÷0.26-(3.8+0.2)
=1.04÷0.26-4
=4-4
=0;
④105-18.4÷2.5-14
=105-7.36-14
=97.64-14
=83.64.
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