4.99+4.99+4.99+0.04+4.99
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/29 06:58:39
![4.99+4.99+4.99+0.04+4.99](/uploads/image/z/442933-61-3.jpg?t=4.99%2B4.99%2B4.99%2B0.04%2B4.99)
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4.99+4.99+4.99+0.04+4.99
4.99+4.99+4.99+0.04+4.99
4.99+4.99+4.99+0.04+4.99
0.04拆分成4个0.01
20
20
20
把0.04分成4个0.01,再与4个4.99相加
先4x9=36
20
很简单的
20
4.99*3+0.04
1353
吧四个0.01分给四个4.99就是一共四个五是20
4.99乘以4+0.04=20
20
4.99+4.99+4.99+0.04+4.99
=(4.99+0.1)+(4.99+0.1)+(4.99+0.1)+(4.99+0.1)
=5+5+5+5
=20
(4.99×4)+0.04=20
4.99+4.99+4.99+0.04+4.99
=(4.99+0.01)×4
=5×4
=20
=4.99×4+0.04
=(5-0.01)×4+0.04
=20
5+5+5+5=20
4.99×4+0.04
等于4个(4.99+0.01)
=(5-0.01)×4+0.04
=5×4-0.01×4+0.04
=5
4.99×4+0.04
0.04拆分成4个0.01,再分别和4.99相加。就是4个5的和了,等于20
4(4.99+0.01)
5+5+5+5+0.04-4-0.01
把4.99当5来算,就得4乘以5得20每个4.99都多个0.01。4个就是0.04,它刚好和式子中的约掉,就得20
手机上不是有计算器吗,