Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).
Adam and Bryan have some stickers.
710 of the stickers that Adam has is 7 less than
78 of what Bryan has.
Let
78 of Bryan's stickers be 7 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.
78 of Bryan's stickers → 7 u
18 of Bryan's stickers → 1 u
88 of Bryan's stickers → 8 u
Number of Bryan's stickers = 8 u
(b)
710 of Adam's stickers → 7 u - 7
110 of Adam's stickers → 7 u - 7 = (7 u - 7) ÷ 7 = 1 u - 1
1010 of Adam's stickers → 10 x (1 u - 1) = 10 u - 10
Number of Adam's stickers = 10 u - 10
(c)
Total number of stickers
= 8 u + 10 u - 10
= 18 u - 10
(d)
Difference in the number of stickers between Adam and Bryan
= (10 u - 10) - 8 u
= 10 u - 8 u - 10
= 2 u - 10
Answer(s): (a) 8 u; (b) 10 u - 10; (c) 18 u - 10 ; (d) 2 u - 10