Bryan and Adam have 20 stickers.
Bryan has 10 less stickers than Adam.
Find the number of stickers that Adam has.
- Which model should we draw?
(1) Model Part-whole
(2) Model Comparison
- Is the total given?
(1) Yes
(2) No
- Who gets the shorter bar?
(1) Bryan
(2) Adam
- Number of stickers that Adam has =
(a)
Which model should we draw?
(1) Model Part-whole
(2) Model Comparison
We should draw a (2) Model Comparison.
(b)
Is the total given?
(1) Yes
(2) No
(1) The total is given.
(c)
Who gets the shorter bar?
(1) Bryan
(2) Adam
Bryan has 10 less stickers than Adam.
So, Bryan (1) gets the shorter bar.
(d)
If 10 more stickers are given to Bryan, Bryan and Adam will have the same number of stickers.
Number of stickers that Adam has
= (20 + 10) ÷ 2
= 30 ÷ 2
= 15
Answer(s): (a) 2; (b) 1; (c) 1; (d) 15