Question

Solve this problem. John wants to buy a catcher's mitt for $32.85 and a team jacket for $24.30. He has $45 saved. How much more money does John still need to save? How can estimation could be used to make sure the answer is reasonable? A. Answer: John needs $12.15 more. Estimation: $33 $24 = $57. $57 – $45 = $12. John needs about $12 more to buy the two items. B. Answer: John needs $28.58 more. Estimation: $33 $24 = $57. $57 ÷ 2 = $28.50 John needs about $28.50 more to buy the two items. C. Answer: John needs $102.15 more. Estimation: $33 $24 = $57. $45 $57 = $102. John needs about $102 more to buy the two items.

Answer 1

$32.85 + $24.30
Round the numbers.
$33.00 + $24.00
Equals $57.00
$57.00 - $45.00
Equals $12.00
He needs $12.00 more to afford both items.
Therefore, A is the answer. "John needs $12.15 more. Estimation: $33 $24 = $57. $57 – $45 = $12. John needs about $12 more to buy the two items."

Answer 2

32.85+24.30= $57.15 is the amount needed to buy the jacket and mitten

he has saved 45
so 57.15-45=12.15

he needs 12.15 more dollars

For an estimation, we round these numbers.

32.85 rounds up to 33
and 24.30 rounds down to 24

33+24=57
57-45=12
he needs around $12

so the correct answer is A