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脱式计算9.6÷7+71×4

原式=48/5-11/7+284 =9又3/5-1又4/7+284 =292又1/35

(1)905-150×4,=905-600,=305;(2)168×5÷6,=840÷6,=140;(3)(71+37)÷9,=108÷9,=12;(4)735÷7÷3,=105÷3,=35.

(1)1.29+3.7+0.71+6.3=1.29+0.71+(6.3+3.7)=2+10=12;(2)528×78+472×78=(528+472)×78=1000×78=78000;(3)125×89×8=125×8×89=1000×89=89000;(4)57×101-57=57×(101-1)=57×100=5700;(5)19×96-962÷74=1824-13=1811;(6)(520+48...

71×2加27×2加四的简便运算 =(71+27+2)x2 =200

51又2/3*3/5+71又3/4*4/7+91又4/5*5/9 =(50+5/3)*3/5+(70+7/4)*4/7+(90+9/5)*5/9 =50 *3/5+5/3 *3/5+70 *4/7+7/4 *4/7+90 *5/9+9/5 *5/9 =30+40+50+1*3 =123

1. 41又2/3÷5/3+71又3/4÷7/4+91又4/5÷9/5 =(40+5/3)*3/5+(70+7/4)/7/4+90+9/5/9/5 =24+1+40+1+50+1 =117 2. 1/5×27+3/5×41 =1/5*(27+3*41) =1/5*(27+123) =1/5*150 =30 3. 5/11×1/20+3/11×1/2+5/11×1/2 =1/11*(5/20+3/2+5/2) =1/11*(1/4+6/4+10/...

是乘号吗

2.71×7.4+26×0.87+0.74×59.9 =27.1×0.74+26×0.87+0.74×59.9 =(27.1+59.9)×0.74+26×0.87 =87×0.74+26×0.87 =87×0.74+0.26×87 =87×(0.74+0.26) =87×1 =87

51又2/3÷5/3+71又3/4÷7/4+91又4/5÷9/5 = 51又2/3×3/5+71又3/4×4/7+91又4/5×5/9 = (50+5/3)×3/5+(70+7/4)×4/7+(90+9/5)×5/9 =30+1+40+1+50+1 =123

计算: 51又2/3÷5/3+71又3/4÷7/4+91又4/5÷9/5 =(50+5/3)×3/5+(70+7/4)×4/7+(90+9/5)×5/9 =50×3/5+5/3×3/5+70×4/7+7/4×4/7+90×5/9+9/5×5/9 =30+1+40+1+50+1 =123

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