Gwen had 18 balloons.
13 of the balloons burst and she gave away
56 of the good balloons. How many balloons did she have left?
| |
Good balloons |
Burst balloons |
Total balloons |
Comparing good and
burst balloons at first |
2x3 =
6 u
|
1x3 =
3 u
|
3x3 =
9 u
|
| Before |
6 u |
3 u |
|
| Change |
- 5 u |
|
|
| After |
1 u |
3 u |
|
The number of good balloons is repeated. Make the number of good balloons the same. LCM of 2 and 6 is 6.
Total number of balloons at first = 9 u
1 u = 18 ÷ 9 = 2
Number of balloons that Gwen had left
= 1 u
= 2
Answer(s): 2
