Megan has $45.12 in her purse. She spends $7.89 for lunch and $21.25 for a pair of sunglasses. Which is the best estimate for the amount of money Megan has left?

To estimate the amount of money Megan has left, we can subtract the total amount she spent from the amount she started with.

Total amount Megan spent = $7.89 + $21.25 = $<<7.89+21.25=29.14>>29.14

Amount Megan has left = $45.12 - $29.14 = $<<45.12-29.14=15.98>>15.98

The best estimate for the amount of money Megan has left is $15.98.

To find the best estimate for the amount of money Megan has left, we need to subtract the amount she spent from the initial amount she had.

1. Subtract the cost of lunch: $45.12 - $7.89 = $37.23
2. Subtract the cost of sunglasses: $37.23 - $21.25 = $15.98

Therefore, the best estimate for the amount of money Megan has left is $15.98.

To find the best estimate for the amount of money Megan has left, we need to subtract the amount she spent from the amount she initially had.

Initial amount Megan had = $45.12
Amount spent on lunch = $7.89
Amount spent on sunglasses = $21.25

To calculate the estimate for the amount of money Megan has left, we subtract the total amount spent from the initial amount:

Total amount spent = $7.89 + $21.25 = $29.14

Amount of money Megan has left = Initial amount - Total amount spent
Amount of money Megan has left = $45.12 - $29.14

To get the best estimate, we round the initial amount and total amount spent to the nearest whole number:

Rounded initial amount = $45
Rounded total amount spent = $29

Estimate for the amount of money Megan has left = Rounded initial amount - Rounded total amount spent
Estimate for the amount of money Megan has left = $45 - $29

Calculating the estimate gives us:

Estimate for the amount of money Megan has left = $16

Therefore, the best estimate for the amount of money Megan has left is $16.