7.04+29.96简便计算

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7.04+29.96简便计算7.04+29.96简便计算7.04+29.96简便计算7.04+29.96=(7+0.04)+(30-0.04)=7+30=377.04+29.96=(7+0.04)+(

7.04+29.96简便计算
7.04+29.96简便计算

7.04+29.96简便计算
7.04+29.96
=(7+0.04)+(30-0.04)
=7+30
=37

7.04+29.96
=(7+0.04)+(30-0.04)
=7+30+0.04-0.04
=37