Fill in the blanks in units (Eg 1 u) or unit equations (Eg 1 u + 2).
Bryan, Charlie and Adam have some stickers.
Adam has
23 as many as Bryan.
Charlie has 90 more than Adam.
Let the number of stickers that Bryan has be 3 u.
- Number of stickers that Adam has = _____
- Number of stickers that Charlie has = _____
- Total number of stickers = _____
- Number of stickers that Bryan has more than Charlie = _____
(a)
Let the number of stickers that Bryan has = 3 u
Number of stickers that Adam has = 2 u
(b)
Number of stickers that Charlie has = 2 u + 90
(c)
Total number of stickers
= 3 u + 2 u + 2 u + 90
= 7 u + 90
(d)
Number of stickers that Bryan has more than Charlie
= 3 u - (2 u + 90)
= 3 u - 2 u - 90
= 1 u - 90
Answer(s): (a) 2 u; (b) 2 u + 90; (c) 7 u + 90; (d) 1 u - 90