Question

数学。计算下面各题，简算的要简算，谢谢你！

Answer 1

1）原式=24.9+（40.6-42.5）
=24.9+（-1.9）
=23
2）原式=440.98-248.97
192.01
3）原式=10+15.4
=25.4
4）原式=10+2.7
=12.7
5）原式=8-5.64
=2.36
6）原式=29.01+2.1
=31.11

Answer 2

1、24.9+40.6-42.5
=65.5-42.5
=23

2、440.98-（87.4+161.57）
= 440.98-218.97
=221.03

3、19.92+15.4-9.92
=19.92-9.92+15.4
=10+15.4
=25.4

4、5.6+2.4+4.4
=5.6+4.4+2.4
=10+2.4
=12.4

5、12.36-5.64-4.36
=12.36-（5.64+4.36）
=12.36-10
=2.36

6、35.76-6.75+2.1
=29.01+2.1
=31.11