PSLE For a recycling project, Howard collected 10 metal cans, Oliver collected 9
r metal cans and George collected 3 + 5
r metal cans.
- How many more metal cans did Oliver collect than George?
- How many metal cans did the 3 boys collect altogether?
(a)
Number of metal cans that Oliver collected more than George
= 9
r - (3 + 5
r)
= 9
r - 5
r - 3
= 4
r - 3
(b)
Total number of metal cans that the 3 boys collected
= 10 + 9
r + 3 + 5
r = 10 + 3 + 9
r + 5
r = 13 + 14
r Answer(s): (a) 4
r - 3; (b) 13 + 14
r