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(7.5一2.3x0.4)÷0.02脱式计算

2.3+3.91÷(22-19.7) =2.3+3.91÷2.3 =2.3+1.7 =4 1.25×88 =5/4×88 =110 0.8×0.4×0.125×25 =(0.8×0.125)×(0.4×25) =0.1×10 =1 100.7-(75+9.6÷0.4) =100.7-(75+24) =100.7-99 =1.7

简便运算 1.4x0.27x25 2.560÷16÷5 3.3.8x99+3.8 4.(8+4/9)÷4 5.2/5+3/7+3/5+4/7 6.7/16x9-7/16x7 7.0.4x(12x2.5) 8.(3.8-1.8÷2)x0.5 9.1/4x4÷1/4x4 10.8/13÷7+1/7x5/13 解方程: 1.30x=15 2.50%x-30=52 3.16+4x=40 4.x+0.5x=6 5.3x+1/2=5/3 6.x-...

切!我才不呢!!没赏钱、、没经验、、真是的!! 这种问题你还是问精英吧!!

我擦,这么多,我。。。。先去散散步

325-162÷36×24 =325-162×2/3 =325-54×2 =325-108 =217 ( 3分之1+6分之1+9分之1)除以36分之1 =(6/18+3/18+2/18)×36 =(11/18)×36 =11×2 =22 解方程 1、4分之3x+5分之2x=69 15x+8x=69×20 23x=69×20 x=60 2、1.25:0.25=x:1.6 0.25x=1.6×1.25 x...

(2-1/2)x(2-2/3)x(2-3/4)x…x(2-2015/2016) =(3/2)x(4/3)x(5/4)x......x(2017/2016) =2017/2 =1008又2分之1

3.8-0.8×1.5-0.5 =3.8-(0.8×1.5+0.5) =3.8-(0.8×3×0.5+0.5) =3.8-0.5×(2.4+1) =0.4+3.4-0.5×3.4 =0.4+3.4×(1-0.5) =0.4+3.4×0.5 =0.4+1.7 =2.1

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