40x25%+18x1⼀4+4÷4,(1-1⼀9)x(0.72÷64%)简便计算

2025-06-26 19:07:02
推荐回答(4个)
回答1:

40x25%+18x1/4+4÷4
=40x1/4+18x1/4+4x1/4
=(40+18+4)x1/4
=62x1/4
=15.5
(1-1/9)x(0.72÷64%)
=8/9x(18/25÷8/25)
=8/9x18/25x25/8
=2
希望能帮到你!

回答2:

40x25%+18x1/4+4÷4,
=40x1/4+18x1/4+4x1/4
=(40+18+4)x1/4
=62x1/4
=15.5
(1-1/9)x(0.72÷64%)
=8/9x(18/25÷16/25)
=8/9x18/25x25/16
=1

回答3:


如图

回答4:

  1. 40x25%+18x1/4+4÷4=10+9/2+1=15.5

  2. (1-1/9)x(0.72÷64%)=8/9 x 72/64=8/9 x 9/8=1