2.4乘1.02的简便方法 5.07-4.5+0.93的简便方法

5.07-4.5+0.93的简便方法  

5.07-4.5+0.93的简便方法

5.07-4.5+0.93
=0.57+0.93
=1.5

8.4x0.93+2.6x0.93-0.93简便方法

8.4x0.93+2.6x0.93-0.93
=(8.4+2.6-1)x0.93
=10x0.93
=9.3

5.07-2.39+4.93的简便方法

5.07-2.39+4.93
=5.07+4.93-2.39
=10-（3-0.61）
=10-3+0.61
=7+0.61
=7.61
谢谢，请采纳

5.07除以15的简便方法

5.07除以15
=10.14÷30
=1.014÷3
=0.338

3.9×9.9 0.93的简便方法计算是

原式等于
3.9×（9.9+0.1）=39
回答完毕~~~

4.5-4.5脳0.98的简便方法

4.5-4.5*0.98
=4.5*（1-0.98）
=4.5*0.02
=0.09

4.5×1.99的简便方法

4.5×1.99
=4.5×2-4.5×0.01
=9-0.045
=8.955
求采纳

10分之1 同时除以25

4.5*10.2的简便方法

4.5*10.2
=4.5x(10+0.2)
=4.5x10+4.5x0.2
=45+0.9
=45.9

392.6×192-39260×0.93=?简便方法计算

=392.6×192-392.6×93
=392.6×(192-93)
=392.6×99
=392.6×(100-1)
=392.6×100-392.6×1
=39260-392.6
=38867.4