简便计算 4道,10.4-9.6×0.5 3.12+3.12×99 0.45×7.5-0.45×6.5 （4.23+6.17）×0.8
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/25 13:12:59
简便计算4道,10.4-9.6×0.53.12+3.12×990.45×7.5-0.45×6.5（4.23+6.17）×0.8简便计算4道,10.4-9.6×0.53.12+3.12×990.45×7
简便计算 4道,10.4-9.6×0.5 3.12+3.12×99 0.45×7.5-0.45×6.5 （4.23+6.17）×0.8
简便计算 4道,
10.4-9.6×0.5
3.12+3.12×99
0.45×7.5-0.45×6.5
（4.23+6.17）×0.8
简便计算 4道,10.4-9.6×0.5 3.12+3.12×99 0.45×7.5-0.45×6.5 （4.23+6.17）×0.8
10.4-9.6×0.5
=10.4-4.8
=5.6
3.12+3.12×99
=3.12(1+99)
=312
0.45×7.5-0.45×6.5
=0.45(7.5-6.5)
=0.45
（4.23+6.17）×0.8
=10.4×0.8
=8.32
5.6 312 0.45 11.2