用递等式计算,能简便的简便计算:7.28-(1.28+0.25)0.64×6.4-O.64×5.426.18-(48.6÷18)×3.5 9.4×[O.96÷(5.4÷0.9)].
(1)7.28-(1.28+0.25), =7.28-1.28-0.25, =6-0.25, =5.75; (2)0.64×6.4-O.64×5.4, =0.64×(6.4-5.4), =0.64×1, =0.64; (3)26.18-(48.6÷18)×3.5, =26.18-2.7×3.5, =26.18-9.45, =16.73; (4)9.4×[O.96÷(5.4÷0.9)], =9.4×[0.96÷6], =9.4×0.16, =1.504. |
用递等式计算,能简便的简便计算:7.28-(1.28+0.25)0.64×6.4-O.64×...
(1)7.28-(1.28+0.25),=7.28-1.28-0.25,=6-0.25,=5.75;(2)0.64×6.4-O.64×5.4,=0.64×(6.4-5.4),=0.64×1,=0.64;(3)26.18-(48.6÷18)×3.5,=26.18-2.7×3.5,=26.18-9.45,=16.73;(4)9.4×[O.96÷(5.4÷0.9)],=...
7.28减(1.28加0.25)怎么简便计算
7.28-(1.28+0.25)=7.28-1.28-0.25=6-0.25=5.75
简便运算7.28-(1.28+0.25)
7.28-(1.28+0.25)=7.28-1.28-0.25 =6-0.25 =5.75
能简算的要简算7.28-(1.28+0.25)2.25×4.8+77.5×0.488×4×12.5×0...
(1)7.28-(1.28+0.25)=7.28-1.28-0.25=6-0.25=5.75;(2)2.25×4.8+77.5×0.48=2.25×10×0.48+77.5×0.48=22.5×0.48+77.5×0.48=(22.5+77.5)×0.48=100×0.48=48;(3)8×4×12.5×0.25 =(8×12.5)×(4×0.25)=100×1=100;(4)...
7.28×(1.28+0.25)的简便运算怎么做
=7.28X1.53 =7.28X(1+0.5+0.03)=7.28+7.28X0.5+7.28X0.03 =7.28+3.64+0.2184 =11.1384
7.28÷4×0.25有简便运算?
7.28÷4×0.25 =1.82×1/4 =0.455
...计算.2002-540÷36×967.28-(1.28+0.25)2.25×1.8+17.5×0.1836×...
(4)36×( 2 9 + 7 12 - 1 4 )=36× 2 9 +36× 7 12 -36× 1 4 ,=8+21-9,=20;(5) 7 15 ÷[1-( 4 5 - 2 3 )].= 7 15 ÷[1-( 12 15 - 10 ...
五年级下册数学分数简便混合运算题!!! 求求你们!!!
4.8×0.25= 0.125×1.4≈ (保留两位小数) 2.5÷0.7= (保留三位小数) 10.1÷3.3= (商用循环小数)10.75÷12.5= (用乘法验算) 3.25×9.04= (用除法验算)二、脱式计算(能简算的要简算)18.76×9.9+18.76 3.52÷2.5÷0.4 3.9-4.1+6.1-5.9 0.89×100.19.6÷0.8÷0.4 4.2×99+4.2 3.65×10.1 17.8÷(1.78×4)...
6\/5-x=36\/7 解方程,简便计算 五年级下册开心上的一道题
15÷0.25 x+1\/3x=4 解方程。 5\/6×4\/5-1\/5÷6\/5 简便计算 公式! 1. x+1\/3x=4 x=4*3\/4 x=3 2. 5\/6×4\/5-1\/5÷6\/5 =5\/6×(4\/5-1\/5) =5\/6×3\/5 =1\/2 求一道五年级简便计算题:125*0.376+1.25*26.4+36\/0.8=? 125*0.376+1.25*26.4+36\/0.8 =1.25*37.6+1.25*26.4+45 =...
五年级小数笔算题(竖式计算)和答案
0.12×0.5×0.16= 4.8×0.25= 0.125×1.4≈(保留两位小数)2.5÷0.7= (保留三位小数) 10.1÷3.3= (商用循环小数)10.75÷12.5= (用乘法验算) 3.25×9.04= (用除法验算)3、脱式计算(能简算的要简算)2.5×7.1×4 16.12×99+16.12 5.2×0.9+0.97.28×99+7.28 4.3×50×0.2 64-2.64×0.526×15.7+15.7×24...