Adam and Bryan have 40 marbles.
Adam has 6 more marbles than Bryan.
Find the number of marbles 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 marbles 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 6 more marbles than Bryan. So, (2) Bryan gets the shorter bar.
(d)
If 6 more marbles are given to Bryan, Adam and Bryan will have the same number of marbles.
Number of marbles that Adam has
= (40 + 6) ÷ 2
= 46 ÷ 2
= 23
Answer(s): (a) 2; (b) 1; (c) 2; (d) 23