Adam needs 80 stickers.
He has 50 stickers.
How many more does he need?
- 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) Has
(2) Needs
- Number of more stickers that Adam needs = _____
(a)
Which model should we draw?
(1) Model Part-whole
(2) Model Comparison
We should draw a (1) Model Part-whole.
(b)
Is the total given?
(1) Yes
(2) No
(2) The total is not given.
(c)
Who gets the shorter bar?
(1) Has
(2) Needs
50 stickers is less than 80 stickers. So, (1) 'Has' gets the shorter bar.
(d)
Number of more stickers that Adam needs
= 80 - 50
= 30
Answer(s): (a) 1; (b) 2; (c) 1; (d) 30