PSLE
Gabby and Kimberly folded paper cranes over two days. On Thursday, Gabby folded 8 paper cranes more than Kimberly. On Friday, Gabby folded another 38 paper cranes and Kimberly folded another 10. At the end of the two days, Gabby made ⁵₇ of the total number of cranes. What was the number of paper cranes that Kimberly folded?

	Gabby	Kimberly	Difference
Before	1 u + 8	1 u	8
Change	+ 38	+ 10
After	1 u + 46	1 u + 10	36
Comparing between Gabby and Kimberly in the end	5 p	2 p	3 p

Difference between the number of paper cranes that Gabby and Kimberly folded in the end is repeated.

Difference between the number of paper cranes that Gabby and Kimberly folded in the end
= 5 p - 2 p
= 3 p

Difference between the number of paper cranes that Gabby and Kimberly folded in the end
= (1 u + 46) - (1 u + 10)
= 1 u + 46 - 1 u - 10
= 46 - 10
= 36

3 p = 36

1 p = 36 ÷ 3 = 12

Number of paper cranes that Kimberly folded
= 2 p
= 2 x 12
= 24

Answer(s): 24