Question

Cody made deposits of $45, $18, and $27 into his checking account. He then wrote checks for $21 and $93. What would the expression look like if you used integer addition?

Answer 1

Answer:

-90 - (-144)

Step-by-step explanation:

Here you go!

Since we're depositing, you'll add the three numbers.

45 + 27 + 18 = $90

Cody deposits 90 dollars in total.

If you write checks, the numbers go down. So you'll add them, and then subtract that by the 90 dollars Cody deposits.

You'll end up with:

45 + 27 + 18 - (21 + 93)

This can simplify to..

90 - (21 + 93)

But wait! Let's add what's in the parenthesis!

93 + 21 = 144

90 - 144 = t

t = -54

Solving this equation will give you: -54

But the simple way is -90 - (-144)