Barbara baked 66 biscuits. She ate
411 of them.
- How many biscuits had she eaten?
- How many biscuits had she left?
(a)
Total number of biscuits baked = 11 u
11 u = 66
1 u = 66 ÷ 11 = 6
Number of biscuits that Barbara ate
= 4 u
= 4 x 6
= 24
(b)
Number of biscuits that Barbara had left
= 66 - 24
= 42
Answer(s) : (a) 24; (b) 42