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9.5 ÷(1.9x0.8)簡便計算 ,

9.5 ÷(1.9x0.8) =9.5÷1.9÷0.8 =5÷0.8 =(4+1)÷0.8 =4÷0.8+1÷0.8 =5+1.25 =6.25 朋友,请及时采纳正确答案,下次还可能帮到您哦,您采纳正确答案,您也可以得到财富值,谢谢。

9.2X85,5.1X9.9十0.51,81.2÷39十1.8X2.1能简便就简便,不能简便,就不简便 9.2X85, =85*(10-0.8) =85*10-8.5*0.8 =782 5.1X9.9十0.51, =5.1*(99+1) =5.1*100 =510 81.2÷39十1.8X2.1 = 81.2÷39,结果不是有限小数,核实算式

(5/6-1/8)÷6/3÷6 =(5/6-1/8)×12 =10-3/2 =10-1.5 =8.5 (0.75-3/16)X(2/9+2/3) =(12/16-3/16)×(2/9+6/9) =9/16×8/9 =8/16 =2分之1 2/17*37÷15/17÷35/37 =2*15/37×37/35 =6/7 =7分之6 (18*11/23+5÷23/11)*60% =(18*11/23+5*11/23)*0.6 =11/2...

x-6.75=1.68 x=8.43 x÷2.8=5.6 x=15.68 1.2+1.2x=2.4 1.2x=1.2 x=1 4x-2.5=9.5 4x=12 x=3 0.7x+6×5=37 0.7x=7 x=10 1.2x-0.8x=4.8 0.4x=4.8 x=12

0.24×1.2×150 =(0.24×30)×(1.2×5) =7.2×6 =43.2 0.8×0.9÷0.8×0.9 =(0.8÷0.8)×(0.9×0.9) =1×0.81 =0.81 9.9×4.3 =10×4.3-0.1×4.3 =43-0.43 =42.57 8.12×98+8.12×2 =8.12×(98+2) =8.12×100 =812 6.4×(0.125+12.5) =0.8×8×(0.125+12.5) =0.8×(...

1.25×0.25×8×40 =(1.25×8)×(0.25×40) =10×10 =100 5.7×9.9 =5.7×(10-0.1) =5.7×10-5.7×0.1 =57-0.57 =56.43 0.34×10.1 =0.34×(10+0.1) =0.34×10+0.34×0.1 =3.4+0.034 =3.434 12.5×(10+0.8) =12.5×10+12.5×0.8 =125+10 =135 44.5×3.7+6.3×44.5 =4...

第一题 (450/16)*9=253.125 第二题 ( 24*12.5)/(12.5-2.5)=30或者24+(24*2.5)/(12.5-2.5)=10 望你采纳!谢谢!!!

8.8÷1.1+3.9÷1.3 =8+3 =11 12.56x0.8-9.75÷3 =12.5×0.8+0.06×0.8-3.25 =10+0.048-3.25 =6.798 43.5x2.9的积是(2)位小数, 0.125x8是(0)位小数 5.6x0.5表示(5.6的10分之5是多少) 6x0.5表示(6的10分之5是多少) 7.2与4.8的差乘以3.5,所得...

59、4、1

10.1×26.9-1.25×26.9×0.8 =10.1×26.9-(1.25×0.8)×26.9 =26.9×(10.1-1.28×0.8) =26.9×(10.1-0.1) =26.9×10 =269

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