= 150× 1/3
= 100 (yuan) A: There is still 100 yuan left.
2、 120×( 1-2/5)
= 120 ×3/5
=72 (Ben) A: Borrow 72 copies.
3、 128 ×( 1-5/8)
= 128× 3/8
=48 (pieces) A: There are 48 animal specimens in the laboratory.
4、( 1):95 ×( 1-3/5)
=95 ×2/5
=38 (pages) A: I read 38 pages the next day.
(2):5-3=2
3+2=5
2÷ 5=2/5
95× 2/5=38 (page)
A: I read 38 pages the next day.