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7.2÷0.25÷0.4脱式计算,能简算的要简算

=4.1÷(0.25×0.4) =4.1÷0.1 =41 望采纳,点击采纳

0.25x0.7÷0.25×0.7 =(0.25÷0.25)x(0.7x0.7) =1x0.49 =0.49

(1)21÷0.25÷0.4=21÷(0.25×0.4)=21÷0.1=210(2)3.5×0.7+5.5×0.7+0.7=(3.5+5.5+1)×0.7=10×0.7=7(3)14.5×102=14.5×100+14.5×2=1450+29=1479(4)0.125×3.2×0.25=(0.125×8)×(0.4×0.25)=1×0.1=0.1(5)64×4.5+3.6×45=(6.4+3.6)×45=10×...

0.3×0.25-0.2÷4 =(0.3-0.2)×0.25 =0.1×0.25 =0.025 9×5.4÷0.9 =9÷0.9×5.4 =10×5.4 =54 你好,本题以解答,如果满意,请点右上角“采纳答案”,支持一下。

(1)21÷0.25÷0.4 =21÷(0.25×0.4)=21÷0.1=210; (2)3.5×0.7+5.5×0.7+0.7=(3.5+5.5+1)×0.7=10×0.7=7;(3)0.125×32×0.25 =(0.125×8)×(4×0.25)=1×1=1; (4)8.2×99+8.2=8.2×(99+1)=8.2×100=820.

0.175÷0.25×0.4 =0.7x0.4 =0.28

脱式计算能简算的要简算 0.25x32x12.5 =(0.25×4)×(8×12.5) =1×100 =100 2/5x68+0.4x32 =0.4×(68+32) =0.4×100 =40 14/5÷(14/5+7/10) =14/5÷7/2 =4/5 (2/3+4/15x5/6)÷10/21 =(2/3+2/9)÷10/21 =8/9÷10/21 =28/15 1-5/8÷25/28-3/10 =1-...

照片

4.9÷0.25÷0.4 =4.9÷(0.25×0.4) =4.9÷0.1 =49 1.47×6.5+7.53×6.5+6.5 =(1.47+7.53+1)×6.5 =10×6.5 =65

(1)13.65÷0.25÷4 =13.65÷(0.25×4)=13.65÷1=13.65(2)28.98÷6.3-3.15 =4.6-3.15=1.45(3)86.4÷0.24+40=360+40=400

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