Question

Alex wrote checks on Tuesday for $25 and $50. He also made a deposit in his checking account of $190. Find the overall change in the amount in his checking account.

Answer 1

+
`\$115`

Explanation:

When you write a check you are losing money, since it goes out of your account. When you deposit, you add money.

So:
`\Delta\$ = -\$25 -\$50 + \$190=+\$115`

Therefore the total change to his account is an increase of
`\$115`.