Archie has 486 candy canes and Elijah has 604 candy canes. How many candy canes must Elijah give to Archie so that Archie will have 42 more candy canes than Elijah?
| |
Archie |
Elijah |
Total |
| Before |
486 |
604 |
1090 |
| Change |
+ ? |
- ? |
|
| After |
1 u + 42 |
1 u |
1090 |
The total number of candy canes remains unchanged after Elijah gives to Archie.
Total number of candy canes
= 486 + 604
= 1090
Total number of candy canes in the end
= 1 u + 1 u + 42
= 2 u + 42
2 u + 42 = 1090
2 u = 1090 - 42
2 u = 1048
1 u = 1048 ÷ 2 = 524
Number of candy canes that Elijah must give to Archie
= 604 - 524
= 80
Answer(s): 80
