7.6*0.8+0..2*7.6.0.25*36 0.85*99 用简便方法计算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/23 21:12:13
7.6*0.8+0..2*7.6.0.25*360.85*99用简便方法计算7.6*0.8+0..2*7.6.0.25*360.85*99用简便方法计算7.6*0.8+0..2*7.6.0.25*36

7.6*0.8+0..2*7.6.0.25*36 0.85*99 用简便方法计算
7.6*0.8+0..2*7.6.0.25*36 0.85*99 用简便方法计算

7.6*0.8+0..2*7.6.0.25*36 0.85*99 用简便方法计算
7.6×0.8+0.2×7.6
=(0.8+0.2)×7.6
=1×7.6
=7.6
0.25×36
=0.25×(4×9)
=(0.25×4)×9
=1×9
=9
0.85×99
=0.85×(100-1)
=0.85×100-0.85×1
=85-0.85
=84.15这是我的回答希望采纳哦(ˇˍˇ)