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数学
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(2.8+2有4/5+280%+14/5)*25 3.6*2.7+18*0.56-1.8*10%÷10% 14/15-94/25+8/150-1/25
20-【(1/2+1/3)÷5/6}*1.2
14/15-94/25+8/150-1/25
人气:419 ℃ 时间:2019-08-18 22:52:31
解答
=20-{5/6x6/5}
=20-1
19
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用简便方法计算;1.2.3*3.14-1.2*3.14+8.9*3.14 2.2.56*15+14.4*0.5-0.3*150
15=?1=15 2=19 3=24 4=30 5=36 6=41 7=50 8=56 9=69 10=72 11=83 12=94 13=105 14=275 15=?16=356
1+2+3+4+5+6+7+8+9+1+2+3+4+56+7+8+9+8+5+5+5+5=
3.6×2.7+18×0.56-1.8×10%÷l0%
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