1又33分之2
[1-(1/12+1/15)×2]÷(3/10+9/25)
3个回答
相关问题
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(1)计算:-25÷(-4)×([1/2])2-12×(-15+24)3
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1/5×12÷1/5= 0.25×12.5÷1/32= 2/3×4/9×
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直接写出结果:0.25×40= 9.9÷11.10= 10-1.10= 1÷3.2×2.3= 1.3-1.4= 1÷0.
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口算. 3 4 × 5 6 = 1 7 ÷5= 1÷ 4 7 = 15× 4 15 = 1.25× 1 8 = 2 9
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1-( 1 12 + 1 15 )×2 = 6 7 - 6 7 ×( 2 3 + 1 9 ) = 15 16 ÷( 5
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1 2 + 5 7 × 7 10 1 2 + 8 3 ÷ 2 9 18×(3- 2 9 ) 12× 3 4 +12× 1
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直接写得数1/2-1/2×1/2=?4/7÷8/11=?9÷1/9=?2/7×3=?12×7/8=?9/25×5/3=?
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[3/18]+[2/18] 1-[4/12] [10/15]+[6/15]+[11/15] 2200-200÷25×4
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直接写得数:2/7×14/15=?6/7÷3=?12÷6/11=?3/4÷9/16=?25×40%=?20×【1/4-1
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口算我最棒!1.25×8%= 3 5 ÷0.9 = 4 7 ÷ 8 11 = 9÷ 1 9 = 2 7 ×3 = 12×