Bryan has 90 beads.
Adam has 70 beads.
How many more beads does Bryan have than Adam?
- 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 beads that Bryan has more than Adam = _____
(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
(2) The total is not given.
(c)
Who gets the shorter bar?
(1) Bryan
(2) Adam
Bryan has 90 beads but Adam has 70 beads.
70 is less than 90. So, (2) Adam gets the shorter bar.
(d)
Number of beads that Bryan has more than Adam
= 90 - 70
= 20
Answer(s): (a) 2; (b) 2; (c) 2; (d) 20