AnswersAIA - 12 Career Math 1st SemEstimating and Finding Decimal Products

Estimating and Finding Decimal Products Answers

0 verified answers1 views
1
Free Preview

Gasoline costs $3.65 a gallon. Which is an estimated cost of 14.2 gallons of gasoline?

A
$18
B
$30
C
$40
D
$56
2
Free Preview

Ella wants to estimate the product (3.6)(7.8). Which expression shows each factor rounded to the nearest whole number?

A
(3)(7)
B
(4)(8)
C
(3)(8)
D
(4)(7)
3

Grapes cost $7.55 per pound. Evan wants to buy 4.8 pounds of grapes, and he estimates that he will need $32 to buy the 4.8 pounds of grapes. Which statement about Evan’s estimate is true?

A
Evan rounded 4.8 down to 4. His estimate of $32 is too low.
B
Evan rounded both factors up. He has enough money to buy the grapes.
C
Evan rounded $7.55 up to 8. His estimate of $32 is too high.
D
Evan incorrectly multiplied $8 and 4. His estimate should be $36.
4

Fiona wants to estimate the product (8.7)(3.0). Which expression shows each factor rounded to the nearest whole number?

A
(9)(4)
B
(9)(3)
C
(8)(3)
D
(8)(4)
5

A piece of fabric costs $5.29 a yard. Which is an estimated cost of 16.3 yards of fabric?

A
$21
B
$80
C
$165
D
$800
6

Round steak costs $6.95 per pound. Sara wants to buy 9.5 pounds of round steak which she estimates will cost $54. Which statement about Sara’s estimate is true?

A
Sarah rounded $6.95 and 9.5 up. $54 is enough money to buy the steak.
B
Sarah incorrectly multiplied 9 and 6. Her estimate should be $63.
C
Sarah rounded 9.5 up to 10. Her estimate of $54 is too high.
D
Sarah rounded $6.95 and 9.5 down. Her estimate of $54 is too low.
7

Which expression has an estimated product of 45?

A
44.7 times 2.1
Option A
B
7.5 times 8.4
Option B
C
8.7 times 5.28
Option C
D
38.1 times 7.3
Option D
8

Kerrie is tiling the floor of a kitchen. The kitchen floor measures 11.3 feet by 9.25 feet. She orders enough tiles for 99 square feet. Which statement about the amount of tiles is correct?

A
Kerrie estimated correctly by rounding down. She has enough tile. The exact area is 104.5 square feet.
B
Kerrie estimated correctly by rounding up. She has enough tile. The exact area is 104.5 square feet.
C
Kerrie did not estimate correctly by rounding up. She does not have enough tile. The exact area is 104.5 square feet.
D
Kerrie did not estimate correctly by rounding down. She does not have enough tile. The exact area is 104.5 square feet.

Did you find these answers helpful?