a + 5 = 15

6 + b = 6

c + 25 = 75

Zaira spent 55 hours in 2 weeks working on a science project. She worked 32 hours the first week. Write and solve an addition equation to find the amount of time she spent working the second week.

w + 32 = 55

Keshav has $250 in his account. This is $75 more than his brother Nalin has in his account. Write and solve an addition equation to find the amount of money in Nalin’s account.

n + 75 = 250

I understand