2.5×1.7×0.4,4.8-4.8×0.5,7.09×10.8×7.09 简便运算

2.5×1.7×0.4,4.8-4.8×0.5,7.09×10.8×7.09 简便运算
能简便就简便!
chen_hongjun 1年前 已收到4个回答 举报

songguanghong 幼苗

共回答了17个问题采纳率:88.2% 举报

2.5×1.7×0.4
=2.5×0.4×1.7
=1×1.7
=1.7
4.8-4.8×0.5
=4.8×(1-0.5)
=4.8×0.5
=2.4
7.09×10.8-7.09
=7.09×(10.8-1)
=7.09×(10-0.2)
=7.09×10-7.09×0.2
=70.9-1.418
=69.482

1年前

6

白米白米偶爱你 果实

共回答了4149个问题 举报

2.5×1.7×0.4
=2.5×0.4×1.7
=1×1.7
=1.7

4.8-4.8×0.5
=4.8×(1-0.5)
=4.8×0.5
=2.4

7.09×10.8×7.09没有简便方法

1年前

2

bluewoodoo 幼苗

共回答了2个问题 举报

2.5×0.4×1.7=1×1.7=1.7 4.8(1-0.5)=2.4

1年前

1

bxbx80 花朵

共回答了2320个问题 举报

2.5×1.7×0.4
=(2.5×0.4)×1.7
=1×1.7
=1.7
4.8-4.8×0.5
=4.8×﹙1-0.5)
=4.8×0.5
=2.4
7.09×10.8÷7.09
=(7.09÷7.09)×10.8
=1×10.8
=10.8

1年前

0
可能相似的问题
Copyright © 2024 YULUCN.COM - 雨露学习互助 - 20 q. 0.086 s. - webmaster@yulucn.com