Bryan has 100 marbles.
Adam has 20 marbles.
- What is the difference in the number of marbles between Bryan and Adam?
- How many marbles must Bryan give away to be the same as Adam?
- How many marbles must Adam get to be the same as Bryan?
(a)
Difference in the number of marbles between Bryan and Adam
= 100 - 20
= 80
(b)
Adam has 20 marbles.
So, Bryan gives away some marbles to be the same as Adam.
Number of marbles that Bryan must give away
= 100 - 20
= 80
(c)
Adam has 20 marbles.
So, Adam must get more marbles to be the same as Bryan.
Number of marbles that Adam must get
= 100 - 20
= 80
Answer(s): (a) 80; (b) 80; (c) 80