Sheet # 20/Estimating Answers
Name: _____________________ Date_____________
Show your work.
1) Betty needed to know how much to pay for 3 balloons at 29 cents each. She estimated the cost to be 3 x 30 cents or _______cents.
2) Sue wanted to buy 2 red pens at 39 cents each. She estimated the cost to be 2 x 40 cents or _______ cents.
3) Estimate the cost of 9 balls at 38 cents each.
4) Jean had a dollar to buy a 78 cent pencil. She estimated that she would have 20 cents left. Was her estimate close?
5) Roy estimated the cost of 8 erasers at 18 cents each. It was 8 x 20 cents or $_________.
6) Bill estimated the cost of 4 pens at 89 cents each to be $3.60. Was he correct?
Answers for sheet # 20
1) Betty needed to know how much to pay for 3 balloons at 29 cents each. She estimated the cost to be 3 x 30 cents or _______cents.
90 cents
2) Sue wanted to buy 2 red pens at 39 cents each. She estimated the cost to be 2 x 40 cents or _______ cents.
2 x 40 cents = 80 cents
3) Estimate the cost of 9 balls at 38 cents each.
9 x 40 + $3.60
4) Jean had a dollar to buy a 78 cent pencil. She estimated that she would have 20 cents left. Was her estimate close?
20 cents
5) Roy estimated the cost of 8 erasers at 18 cents each. It was 8 x 20 cents or $_________.
$1.60
6) Bill estimated the cost of 4 pens at 89 cents each to be $3.60. Was he correct?
4 x 90 cents = $3.60