Estimating and Finding Decimal Products

Question 1

Which gives the best estimate and the exact product of (5.9)(8.28)?

Revolt · Accepted Answer

estimate: 48; exact product: 48.852

Question 2

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?

Revolt · Accepted Answer

Evan rounded 4.8 down to 4. His estimate of $32 is too low.

Question 3

Velvet fabric costs $11.49 a yard. Yvette buys 9.3 yards. Yvette’s estimated cost of the velvet is

Revolt · Accepted Answer

$99.

Question 4

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

Revolt · Accepted Answer

$80

Question 5

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?

Revolt · Accepted Answer

Stu estimated correctly by rounding up. He ordered enough brick. The exact area is 228.75 square feet.

Question 6

Which expression has an estimated product of 45?

Revolt · Accepted Answer

8.7 times 5.28

Question 7

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

Revolt · Accepted Answer

(4)(8)

Question 8

Valentino wants to estimate the product (5.2)(9.9). Which expression shows each factor rounded to the nearest whole number?

Revolt · Accepted Answer

(5)(10)

Question 9

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

Revolt · Accepted Answer

$56

Question 10

Using compatible numbers, which is the best estimate of (28.5)(7.1)?

Revolt · Accepted Answer

210

Estimating and Finding Decimal Products Answers

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