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