Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Bryan and Adam have some stickers.
512 of the stickers that Bryan has is 10 less than
57 of what Adam has.
Let
57 of Adam's stickers be 5 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.
57 of Adam's stickers → 5 u
17 of Adam's stickers → 1 u
77 of Adam's stickers → 7 u
Number of Adam's stickers = 7 u
(b)
512 of Bryan's stickers → 5 u - 10
112 of Bryan's stickers → 5 u - 10 = (5 u - 10) ÷ 5 = 1 u - 2
1212 of Bryan's stickers → 12 x (1 u - 2) = 12 u - 24
Number of Bryan's stickers = 12 u - 24
(c)
Total number of stickers
= 7 u + 12 u - 24
= 19 u - 24
(d)
Difference in the number of stickers between Bryan and Adam
= (12 u - 24) - 7 u
= 12 u - 7 u - 24
= 5 u - 24
Answer(s): (a) 7 u; (b) 12 u - 24; (c) 19 u - 24 ; (d) 5 u - 24