The graph shows the number of erasers 3 students collected. Study the graph and answer the following.
- Who collected 8 erasers? Give the answer in number. (Eg 1)
- Which 2 students collected a total of 20 erasers? Give the answer in numbers. (Eg 1, 2)
- How many erasers must Gem give to Aria so that both of them would have the same number of erasers?
(a)
2 erasers → 1 box
8 erasers → 8 ÷ 2 = 4 boxes
(1) Elsa has 4 boxes so she collected 8 erasers.
(b)
Total number of boxes represented by 20 erasers
= 20 ÷ 2
= 10
Number of boxes that Elsa and Gem had
= 4 + 6
= 10
2 students who collected a total of 20 erasers are (1) Elsa and (3) Gem.
(c)
Difference in the number of boxes between Gem and Aria
= 6 - 5
= 1
Number of erasers that Gem must give to Aria
= 1 ÷ 2 x 2
= 1
Answer(s): (a) 1; (b) 1, 3; (c) 1