Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Adam and Bryan have some stickers.
29 of the stickers that Adam has is 2 less than
23 of what Bryan has.
Let
23 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.
23 of Bryan's stickers → 2 u
13 of Bryan's stickers → 1 u
33 of Bryan's stickers → 3 u
Number of Bryan's stickers = 3 u
(b)
29 of Adam's stickers → 2 u - 2
19 of Adam's stickers → 2 u - 2 = (2 u - 2) ÷ 2 = 1 u - 1
99 of Adam's stickers → 9 x (1 u - 1) = 9 u - 9
Number of Adam's stickers = 9 u - 9
(c)
Total number of stickers
= 3 u + 9 u - 9
= 12 u - 9
(d)
Difference in the number of stickers between Adam and Bryan
= (9 u - 9) - 3 u
= 9 u - 3 u - 9
= 6 u - 9
Answer(s): (a) 3 u; (b) 9 u - 9; (c) 12 u - 9 ; (d) 6 u - 9