375-(275-123)的简便运算怎么做.
375-(275-123)的简便运算怎么做.
=375-275+123
=100+123
=223
123 85 42 36的简便运算怎么做?
123+85+42+36=
(120+3)+(80+5)+(40+2)+36
=120+80+40+3+5+2+36
=240+10+36=286
123-58加23-42的简便运算怎么做
123-58+23-42
=123+23-(58+42)
=146-100
=46
87×123+73×123用简便运算怎么做朋友
87*123+73*123
=123*(87+73)
=123*160
=123*100+123*60
=12300+7380
=19680
375×37减26×375-375的简便运算怎么算?
375×37-26×375-375
=375×(37-26-1)
=375×10
=3750
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123*56怎么简便运算
123*56
=125*8*7-2*56
=7000-112
=6888
52512564简便运算怎么做才简便
52512564简便运算怎么做才简便
525*125*64
=(525*8)*(125*8)
=4200*1000
=4200000
简便运算怎么做?
0.8×32.5×12.5
7.6×9.9×0.01
8.32×0.58-0.32×0.58
1.25÷5+0.25×20
10.69-2.5×2.4
0.3×2.5×0.04
8.4×57+8.4×42+8.4
13÷0.65÷2
7.2×10.1-7.2
1.2×2.5+2.8×2.5
32×0.65+3.2×3.5
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