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数学
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13.7÷12.5÷0.8 3.25×8.4+6.75×8.4 (8.1-5.4)÷3.6+85
13.7÷12.5÷0.8
3.25×8.4+6.75×8.4
(8.1-5.4)÷3.6+85.7
人气:352 ℃ 时间:2020-04-03 23:29:02
解答
1) 13.7÷12.5÷0.8
=13.7÷(12.5×0.8)
=13.7÷10
=1.37
2) 3.25×8.4+6.75×8.4
=(3.25+6.75)×8.4
=10×8.4
=84
3)(8.1-5.4)÷3.6+85.7
=2.7÷3.6+85.7
=0.75+85.7
=86.45
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