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小学简便运算,2.9+6.7+2.9+2.9*2.3确实是抄错了,是:2.9+6.7*2.9+2.9*2.3

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/24 15:04:44
小学简便运算,
2.9+6.7+2.9+2.9*2.3
确实是抄错了,是:2.9+6.7*2.9+2.9*2.3
here!
2.9+6.7*2.9+2.9*2.3
=2.9*1+6.7*2.9+2.9*2.3
=2.9*(1+6.7+2.3)
=2.9*10
=29