Question

Sofia owes her brother $25. She gives her brother the $18 she earned dog-sitting. Write an addition expression to describe this situation. Then find the sum and explain its meaning.

Answer 1

She owes her brother $7.

Explanation:

Subtract $18 made from dogsitting from the total (which is $25).

addition expression : $18 + x =$25

check : $25 - $18 = $7

$7 is what she needs to finish paying back.