简易运算计算以下题目:
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/06/16 09:54:57
简易运算计算以下题目:
1、2.9x0.45+0.29x4.2+0.029x13
2、3.84x9.6+0.96x61.6
1、2.9x0.45+0.29x4.2+0.029x13
2、3.84x9.6+0.96x61.6
![简易运算计算以下题目:](/uploads/image/z/7967877-69-7.jpg?t=%E7%AE%80%E6%98%93%E8%BF%90%E7%AE%97%E8%AE%A1%E7%AE%97%E4%BB%A5%E4%B8%8B%E9%A2%98%E7%9B%AE%EF%BC%9A)
1.
=0.29*4.5+0.29*4.2+0.29*1.3
=0.29*(4.5+4.2+1.3)
=2.9
2.
3.84×9.6+0.96×61.6
=3.84×9.6+9.6×6.16
=(3.84+6.16)×9.6
=10×9.6
=96
=0.29*4.5+0.29*4.2+0.29*1.3
=0.29*(4.5+4.2+1.3)
=2.9
2.
3.84×9.6+0.96×61.6
=3.84×9.6+9.6×6.16
=(3.84+6.16)×9.6
=10×9.6
=96