PSLE For a recycling project, Sam collected 23 metal cans, Valen collected 2
f metal cans and Simon collected 7 +
f metal cans.
- How many more metal cans did Valen collect than Simon?
- How many metal cans did the 3 boys collect altogether?
(a)
Number of metal cans that Valen collected more than Simon
= 2
f - (7 +
f)
= 2
f -
f - 7
=
f - 7
(b)
Total number of metal cans that the 3 boys collected
= 23 + 2
f + 7 +
f = 23 + 7 + 2
f +
f = 30 + 3
f Answer(s): (a)
f - 7; (b) 30 + 3
f