Zoe had some erasers at first. She gave 16 of her erasers to her cousin and 14 of her erasers to her buddy. After that, her mother gave her another 9 erasers. She had 44 erasers in the end. How many erasers did Zoe have at first?
Fraction of erasers left after giving to her cousin and her buddy
= 1 -
16 -
14 = 1 -
212 -
312 = 1 -
512 =
712 Number of erasers left after giving to her cousin and her buddy = 7 u
Number of erasers left after her mother gave her another 9 erasers = 7 u + 9
7 u + 9 = 44
7 u = 44 - 9
7 u = 35
1 u = 35 ÷ 7 = 5
Number of erasers that Zoe had at first
= 12 u
= 12 x 5
= 60
Answer(s): 60
