Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Bryan and Adam have some stickers.
211 of the stickers that Bryan has is 2 less than
25 of what Adam has.
Let
25 of Adam's stickers be 2 u.
- Number of stickers that Adam has = ___________
- Number of stickers that Bryan has = ___________
- Total number of stickers = ___________
- Difference in the number of stickers between Bryan and Adam = ___________
(a)
Change fraction into units.
25 of Adam's stickers → 2 u
15 of Adam's stickers → 1 u
55 of Adam's stickers → 5 u
Number of Adam's stickers = 5 u
(b)
211 of Bryan's stickers → 2 u - 2
111 of Bryan's stickers → 2 u - 2 = (2 u - 2) ÷ 2 = 1 u - 1
1111 of Bryan's stickers → 11 x (1 u - 1) = 11 u - 11
Number of Bryan's stickers = 11 u - 11
(c)
Total number of stickers
= 5 u + 11 u - 11
= 16 u - 11
(d)
Difference in the number of stickers between Bryan and Adam
= (11 u - 11) - 5 u
= 11 u - 5 u - 11
= 6 u - 11
Answer(s): (a) 5 u; (b) 11 u - 11; (c) 16 u - 11 ; (d) 6 u - 11