Bryan and Adam have 140 beads.
Bryan has 80 more beads than Adam.
Find the number of beads 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 beads 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 80 more beads than Adam.
So, (2) Adam gets the shorter bar.
(d)
If 80 beads are taken away from Bryan, Bryan and Adam will have the same number of beads.
Number of beads that Adam has
= (140 - 80) ÷ 2
= 60 ÷ 2
= 30
Answer(s): (a) 2; (b) 1; (c) 2; (d) 30