Adam has 50 beads.
Bryan has 30 beads.
How many less 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) Adam
(2) Bryan
- Number of beads that Bryan has less 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) Adam
(2) Bryan
Adam has 50 beads but Bryan has 30 beads.
30 is less than 50. So, (2) Bryan gets the shorter bar.
(d)
Number of beads that Bryan has less than Adam
= 50 - 30
= 20
Answer(s): (a) 2; (b) 2; (c) 2; (d) 20