Question

write a doubles fact to solve. there are 16 crayons in the box. some are green some are red. the number of green crayons is the same as the number of red crayons.

Answer 1

Using r for red crayons, g for green crayons, and c for any color crayon:
r + g = 16, r = g = c
c + c = 16
2c = 16
c=8
r =8, g = 8