题目内容
【题目】合理计算
1.25×3.69×2.5 2.4÷2.5÷0.4 21.3×5.34﹣1.3×5.34
【答案】11.53125；2.4；106.8
【解析】
解：①1.25×3.69×2.5
=4.6125×2.5
=11.53125
②2.4÷2.5÷0.4
=2.4÷（2.5×0.4）
=2.4÷1
=2.4
③21.3×5.34﹣1.3×5.34
=（21.3﹣1.3）×5.34
=20×5.34
=106.8
练习册系列答案
相关题目
题目内容
【题目】合理计算
1.25×3.69×2.5 2.4÷2.5÷0.4 21.3×5.34﹣1.3×5.34
【答案】11.53125；2.4；106.8
【解析】
解：①1.25×3.69×2.5
=4.6125×2.5
=11.53125
②2.4÷2.5÷0.4
=2.4÷（2.5×0.4）
=2.4÷1
=2.4
③21.3×5.34﹣1.3×5.34
=（21.3﹣1.3）×5.34
=20×5.34
=106.8