Anna baked 180 cookies. She gave 90 cookies to Zane and some cookies to Elijah. She had
310 of the total cookies left.
- How many cookies did she have left?
- What fraction of the total cookies did she give to Elijah?
(a)
Total number of cookies = 10 u
10 u = 180
1 u = 180 ÷ 10 = 18
Number of cookies that Anna had left
= 3 u
= 3 x 18
= 54
(b)
Number of cookies that Tina gave to Elijah
= 180 - 54 - 90
= 36
Fraction of the total cookies that Anna gave to Elijah
=
36180=
15Answer(s): (a) 54; (b)
15