Mary baked 63 tarts. She ate
29 of them.
- How many tarts had she eaten?
- How many tarts had she left?
(a)
Total number of tarts baked = 9 u
9 u = 63
1 u = 63 ÷ 9 = 7
Number of tarts that Mary ate
= 2 u
= 2 x 7
= 14
(b)
Number of tarts that Mary had left
= 63 - 14
= 49
Answer(s) : (a) 14; (b) 49