45x75+75x18+62x14怎么简便运算
45x75+75x18+62x14怎么简便运算
45x75+75x18+62x14
=75x(45+18)+62x14
=75*63+63*14-14
=63*(75+14)-14
=63*89-14
=63*90-63-14
=5670-77
=5600-7
=5593
44x75+75x18+62x14怎么简便运算
44x75+75x18+62x14
=75×(44×18)+62×14
=75×62+62×14
=62×(75+14)
=62×89
=62×(100-10-1)
=6200-620-62
=5518
简便运算333x125x111x75
简便运算333x125÷111÷75
333x125÷111÷75
=(333÷111)*(125÷25)÷3
=3*5÷3
=5
0.62x7.18 62x182怎么简便运算
0.62x7.18+62x182
=0.62x7.18+0.62x1.82
=0.62x(7.18+1.82)
=0.62x9
=5.58
简便运算12x14=12x()x7=()x7=()。
2 24 168
12x14=12x(2)x7=(24)x7=(168)
简便运算13x125一25x27+75x14
简便运算
13x125一25x27+75x14
=25×65-25×27+25×350
=25×(65-27+350)
=25×388
=9700
75+(52-36)x18简便运算
75+(52-36)x18=75+16×18=3×25+3×16×6=3×(25+6×16)=3×121=363
45x14的简便运算
45×14
=45×2×7
=90×7
=630
58x347 58x128-58x75的简便运算
58x347十 58x128-58x75
二58X(347十128一75)
二58X400
二23200