Fill in the blanks in units (Eg 1 u) or unit equations (Eg 1 u + 2).
Bryan, Adam and Charlie have some stickers.
Charlie has
23 as many as Bryan.
Adam has 20 less stickers than Charlie.
Let the number of stickers that Bryan has be 3 u.
- Number of stickers that Charlie has = _____
- Number of stickers that Adam has = _____
- Total number of stickers = _____
- Number of stickers that Bryan has more than Adam = _____
(a)
Let the number of stickers that Bryan has = 3 u
Number of stickers that Charlie has = 2 u
(b)
Number of stickers that Adam has = 2 u - 20
(c)
Total number of stickers
= 3 u + 2 u + 2 u - 20
= 7 u - 20
(d)
Number of stickers that Bryan has more than Adam
= 3 u - (2 u - 20)
= 3 u - 2 u + 20
= 1 u + 20
Answer(s): (a) 2 u; (b) 2 u - 20; (c) 7 u - 20; (d) 1 u + 20