Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Bryan and Adam have some stickers.
27 of the stickers that Bryan has is 4 less than
23 of what Adam has.
Let
23 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.
23 of Adam's stickers → 2 u
13 of Adam's stickers → 1 u
33 of Adam's stickers → 3 u
Number of Adam's stickers = 3 u
(b)
27 of Bryan's stickers → 2 u - 4
17 of Bryan's stickers → 2 u - 4 = (2 u - 4) ÷ 2 = 1 u - 2
77 of Bryan's stickers → 7 x (1 u - 2) = 7 u - 14
Number of Bryan's stickers = 7 u - 14
(c)
Total number of stickers
= 3 u + 7 u - 14
= 10 u - 14
(d)
Difference in the number of stickers between Bryan and Adam
= (7 u - 14) - 3 u
= 7 u - 3 u - 14
= 4 u - 14
Answer(s): (a) 3 u; (b) 7 u - 14; (c) 10 u - 14 ; (d) 4 u - 14