Estimating and Finding Decimal Products Answers
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1
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Stu is laying brick down to make a patio. He plans for the patio to be 12.5 feet by 18.3 feet. He orders enough brick for 247 square feet. Which statement about the amount of brick is correct?
A
Stu estimated correctly by rounding up. He ordered enough brick. The exact area is 228.75 square feet.B
Stu estimated correctly by rounding down. He ordered enough brick. The exact area is 228.75 square feet.C
Stu did not estimate correctly by rounding up. He did not order enough brick. The exact area is 228.75 square feet.D
Stu did not estimate correctly by rounding down. He did not order enough brick. The exact area is 228.75 square feet.2
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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 $36.3
Estimate the factors and solve. Which expression has an estimated product of 60?
A
(29.5) (1.7)
B
(13.2) (4.5)
C
(4.67) (9.8)
D
(7.3) (8.52)
4
Velvet fabric costs $11.49 a yard. Yvette buys 9.3 yards. Yvette’s estimated cost of the velvet is
A
$20.B
$99.C
$104.D
$120.5
Deanna estimated the product of 6.45 and 10.2 below.How does the estimate compare to the exact product?
A
The estimate is high because both factors are rounded down.B
The estimate is low because both factors are rounded down.C
The estimate is high because both factors are rounded up.D
The estimate is low because both factors are rounded up.Did you find these answers helpful?
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