500
Madison and Dominic are going to share a King Size Kit Kat candy bar. The long side of the Kit Kat is 20 centimeters. What is the length of the short side of the Kit Kat?
20+_____+20+_____=60
What is the short side is 10 centimeters? (20+20= 40 (long sides) and 60-40=20. There are two short sides, so 10+10=20).
**Very tricky, nice job!**