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75x4x25x4怎么用脱式计算?

简便运算。 58x4x25-1921 =4×25×58-1921 =100×58-1921 =5800-1921 =3879 望采纳哦!

15成4 乘 25乘2 之后等于 60乘50 最后等于3000

(20+4)x25 =24x25=600 先算括号里的,再算乘法 望采纳

4.4×25 =4×25+0.4×25 =100+10 =110

450x25 =450×5×5 =2250×5 =11250

(1510-24x25)÷25 =(1510-1100)÷25 =410÷25 =16.4

125x28x40x25 =125x40x28x25 =125x(8x5)x(7x4)x25 =(125x8)x(5x7)x(4x25) =1000x35x100 =3500000

136x25-25x36 =25x(136-36) =25x100 =2500 望采纳

125x8x5x8x25 =1000x40x25 =1000x1000 =1000000

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