下列各题怎样简便怎样算。2.7x3.7+0.37x73，1.25x0.4x80x2.5，
答案:2 悬赏:10
解决时间 2021-01-13 08:10
- 提问者网友：趣果有间
- 2021-01-12 20:40
下列各题怎样简便怎样算。2.7x3.7+0.37x73，1.25x0.4x80x2.5，
最佳答案
- 二级知识专家网友：鱼芗
- 2021-01-12 20:58
2.7x3.7+0.37x73
=2.7x3.7+3.7x7.3
=3.7x(2.7+7.3)
=3.7x10
=37
1.25x0.4x80x2.5
=(1.25x80)x(0.4x2.5)
=100x1
=100
=2.7x3.7+3.7x7.3
=3.7x(2.7+7.3)
=3.7x10
=37
1.25x0.4x80x2.5
=(1.25x80)x(0.4x2.5)
=100x1
=100
全部回答
- 1楼网友：舊物识亽
- 2021-01-12 22:08
2.7x3.7+0.37x73
=2.7x3.7+7.3x3.7
=(2.7+7.3)x3.7
=10x3.7
=37
1.25x0.4x80x2.5
=1.25x80x(0.4x2.5)
=100x1
=100
=2.7x3.7+7.3x3.7
=(2.7+7.3)x3.7
=10x3.7
=37
1.25x0.4x80x2.5
=1.25x80x(0.4x2.5)
=100x1
=100
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