Adam and Bryan have 80 beads.
Adam has 10 less beads than Bryan.
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) Adam
(2) Bryan
- 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) Adam
(2) Bryan
Adam has 10 less beads than Bryan.
So, (1) Adam gets the shorter bar.
(d)
If 10 beads are taken away from Bryan, Adam and Bryan will have the same number of beads.
Number of beads that Adam has
= (80 - 10) ÷ 2
= 70 ÷ 2
= 35
Answer(s): (a) 2; (b) 1; (c) 1; (d) 35