N3A5TNp19

Answer to Problem 19: 

I would take 32 and divide by 4, which gives me 8, and then multiply by 10 to get an answer of 80. Or I could also divide 32 by 4 to get 8, then put a 0 after the 8 to get 80.

TEACHER NOTES:

These are only two of many mental math strategies than can be used to solve problems. Additional mental strategies may be found in Mental Math in the Middle Grades. [1]