Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Adam and Bryan have some stickers.
27 of the stickers that Adam has is 10 less than
25 of what Bryan has.
Let
25 of Bryan's stickers be 2 u.
- Number of stickers that Bryan has = ___________
- Number of stickers that Adam has = ___________
- Total number of stickers = ___________
- Difference in the number of stickers between Adam and Bryan = ___________
(a)
Change fraction into units.
25 of Bryan's stickers → 2 u
15 of Bryan's stickers → 1 u
55 of Bryan's stickers → 5 u
Number of Bryan's stickers = 5 u
(b)
27 of Adam's stickers → 2 u - 10
17 of Adam's stickers → 2 u - 10 = (2 u - 10) ÷ 2 = 1 u - 5
77 of Adam's stickers → 7 x (1 u - 5) = 7 u - 35
Number of Adam's stickers = 7 u - 35
(c)
Total number of stickers
= 5 u + 7 u - 35
= 12 u - 35
(d)
Difference in the number of stickers between Adam and Bryan
= (7 u - 35) - 5 u
= 7 u - 5 u - 35
= 2 u - 35
Answer(s): (a) 5 u; (b) 7 u - 35; (c) 12 u - 35 ; (d) 2 u - 35