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数学题（共三大题，有看图列式计算、脱式计算和应用题），要写过程！

看图列式计算：脱式计算：应用题：

2025-03-17 00:46:30

推荐回答（1个）

回答1：

1.400/2/5=400x5/2=1000
1000+800=1800
2.x+75%x=30
1.75x=30
x=17.14
3.3.5x0.25+360x0.25+0.25x36.5=0.25(3.5+360+36.5)=0.25x400=100
4.
4800(1-5%)=4560
4560(1-10%)=4104

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