Question

Rob had 16 crayons he gave 8crayons to troy. ella gave rob some crayons now rob has 17crayons how many crayons did ella give rob

Answer 1

Rob, 16 crayons

Troy. 8 crayons

Ella. N crayons

Rob crayons = 16 -8 + N

then

17 = 16 - 8 + N

now find N

N = 17 - 16 + 8 = 9

THEN answer is Ella give 9 CRAYONS TO ROB