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脱式计算,(能简算的要简算) 5.44÷1.25÷0

5.44÷(1.25×0.8)=5.44÷1 0.4÷0.4×5×5=25 第二个没有简便方法

(1)2.8×3.6+6.4×2.8=2.8×(3.6+6.4)=28;(2)5.44÷1.25÷0.8=5.44÷(1.25×0.8)=5.44;(3)8×0.25×0.125×4=(8×0.125)×(0.25×4)=1;(4)63×10.1=63×(10+0.1)=63×10+63×0.1=636.3;(5)2.5×3.6=2.5×4×0.9=10×0.9=9.

(1.25X0.44)+(0.56X100÷0.08X100) =0.55+7 =7.55,

①1.258×18.5-0.258×18.5,=18.5×(1.258-0.258),=18.5×1,=18.5;②8.48÷0.8×0.9,=10.6×0.9,=9.54;③1.25×2.4,=1.25×8×0.3,=10×0.3,=3;④5.85÷(1.3+0.5)×6,=5.85÷1.8×6,=3.25×6,=19.5.

(1)25×7.6×0.8,=(25×0.8)×7.6,=20×7.6,=152;(2)23.7-3.9+6.3-6.1,=(23.7+6.3)-(3.9+6.1),=30-10,=20;(3)2.5×64×1.25,=2.5×(4×8×2)×1.25,=(2.5×4)×(1.25×8)×2,=10×10×2,=200;(4)1÷(1-0.98),=1÷0.02,=50;(...

7.86÷8÷1.25 =7.86÷(8*1.25) =7.86÷10 =0.786 【】125*8=1000,1.25*8=10

(1)0.89×4.8+0.89×5.2=0.89×(4.8+5.2)=0.89×10=8.9;(2)9.4×0.96÷(5.4÷0.9)=9.4×0.96÷6=9.024÷6=1.504;(3)(8+0.8)×1.25=8×1.25+0.8×1.25=10+1=11;(4)0.175÷0.25÷0.4=0.175÷(0.25×0.4)=0.175÷0.1=1.75.

17.5÷1.25÷0.08脱式计算 =17.5÷(1.25x0.08) =17.5÷0.1 =175

(1)19.8×0.54÷0.081=10.692÷0.081=132;(2)0.25×0.32×1.25=0.25×(0.4×0.8)×1.25=(0.25×0.4)×(0.8×1.25)=0.1×0.1=0.01;(3)1.89+8.11×2.5=1.89+20.275=22.165;(4)0.25×201-0.25=0.25×(201-1)=0.25×200=50;(5)8.7×0.99=8.7×(...

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