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脱式计算.6.8×0.75÷0

6.8×0.75÷0.5,=5.1÷0.5,=10.2,13.75÷0.125-2.75,=110-2.75,=107.25,1.53+23.4÷7.2,=1.53+3.25,=4.78.

脱式计算 6.8X0.75÷0.5 =5.1÷0.5 =10.2

0.75比八分之一 =0.75÷1/8 =0.75x8 =6 =6:1

160

6.8乘0.75/0.5 =6.8×(0.75×2) =6.8×1.5 =10.2 13.75/0.125-2.75 =13.75×8-2.75 =110-2.75 =107.25 1.53+23.4/7.2 =1.53+23.4÷9÷0.8 =1.53+2.6÷0.8 =1.53+3.25 =4.78 2.85/1.25/0.8 =2.85÷(1.25×0.8) =2.85 10.5*0.25*12 =10.5×(12÷4) =10....

(1)1020+270÷18-864,=1020+15-864,=171;(2)23÷0.8×34,=23÷45×34,=23×54×34,=58;(3)18+57+6.875+27,=(18+6.875)+(57+27),=(0.125+6.875)+1,=7+1,=8;(4)0.25×64×125%,=0.25×4×2×8×1.25,=(0.25×4)×(8×1.25)×2,=1×...

(1)12.5×0.4×2.5×8,=(12.5×8)×(0.4×2.5),=100×1,=100;(2)0.87×6.6+8.7×0.34,=0.87×6.6+0.87×10×0.34,=0.87×6.6+0.87×3.4,=0.87×(6.6+3.4),=0.87×10,=8.7;(3)9.07-22.78÷3.4,=9.07-6.7,=2.37.

0.95 +6.8×0.5 =0.95+3.4 =4.35

(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;(...

6.8-6.8×0.55+8.5 =6.8-3.74+8.5 =3.06+8.5 =11.56

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