Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Bryan and Adam have some stickers.
25 of the stickers Bryan has is 4 less than
89 of what Adam has.
Let
89 of Adam's stickers be 8 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.
89 of Adam's stickers → 8 u
19 of Adam's stickers → 1 u
99 of Adam's stickers → 9 u
Number of Adam's stickers = 9 u
(b)
25 of Bryan's stickers → 8 u - 4
15 of Bryan's stickers → (8 u - 4) ÷ 2 = 4 u - 2
55 of Bryan's stickers → 5 x (4 u - 2) = 20 u - 10
Number of Bryan's stickers = 20 u - 10
(c)
Total number of stickers
= 9 u + 20 u - 10
= 29 u - 10
(d)
Difference in the number of stickers between Bryan and Adam
= (20 u - 10) - 9 u
= 20 u - 9 u - 10
= 11 u - 10
Answer(s): (a) 9 u; (b) 20 u - 10; (c) 29 u - 10; (d) 11 u - 10