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2.25÷7.5x(3.2÷2.5)脱式计算简便

2.28÷7.5×(3.2÷2.5) =0.6×3.2÷2.5 =1.92÷2.5 =0.768 你好,本题已解答,如果满意 请点右下角“采纳答案”。

1。 7.5X(3/5)+2.5除以(5/3) =7.5X(3/5)+2.5X(3/5) =(7.5+2.5)X(3/5) =10X(3/5) =6. 2。 (2/9)除以[(5/6)X(4/5-2/3)] 解: 因为 [(5/6)X(4/5-2/3)]除以(2/9) =[(5/6)X(4/5-2/3)]X(9/2) =(9/2)X(5/6)X(4/5)-(9/2)X(5/6)X(2/3) =3-5/2 =1/2 所以 (...

原式 =(7.5x6.9)÷(2.5x2.3) =7.5x6.9÷2.5÷2.3 =(7.5÷2.5)x(6.9÷2.3) =3x3 =9 供参考。

2.5÷x=7.5 x=2.5÷7.5 =1/3

(4.8×7.5×8.1)÷(2.4×2.5×2.7) =(4.8÷2.4)×(7.5÷2.5)×(8.1÷2.7) =2×3×3 =18

x÷2.5+7.5=10 x➗2.5=10-7.5 x➗2.5=2.5 x=2.5x2.5 x=6.25

408-12×24 = 408 - 288 = 120 (46+28)×60 = 74 x 60 = 4440 42×50-17 = 2100- 17 = 2083 32+105÷5 = 32 + 21 = 53 420×(327-238) = 420 x 89 = 37380 (4121+2389)÷7 = 6510 ÷7 = 930 3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1 0.8×[(10...

10x-7.5x=5 解:(10-7.5)x=5 2.5x=5 2.5x÷2.5=5÷2.5 x=2

0.4×125×25×0.8 =(0.4×25)×(125×0.8) =10×100=1000 1.25×(8+10) =1.25×8+1.25×10 =10+12.5=22.5 9123-(123+8.8) =9123-123-8.8 =9000-8.8 =8991.2 1.24×8.3+8.3×1.76 =8.3×(1.24+1.76) =8.3×3=24.9 9999×1001 =9999×(1000+1) =9999×...

解:8÷10=0.8 10-1.8-7.2=1 0.43+3.57=4 2.5×4×12=120 0.9×0.8=0.72 7.28×99+7.28=728 4.3×50×0.2=43 7.5x-3x=4.5x a+3a+7a=11a 1.05×100=105 1÷0.5=2 0.96÷3=0.32 1.47÷0.7=2.1 5.4÷6=0.9 8.8×0.1=88

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