Use rounding and mental arithmetic to calculate 2.3 x 4.7 x 8.9.

A)

64

B)

72

C)

80

D)

90

2

Use rounding and mental arithmetic to estimate the total cost of grocery items consisting of $1.79, $5.99, $4.19, and $12.09.

A)

$22

B)

$23

C)

$24

D)

$25

3

A step in the stairwell of a large building is 35 cm high. If the building has a height of 200 m, how many steps are there in the stairwell, to the nearest hundred? Calculation and Rounding Worked Example
(20.0K)

Suleiman is considering buying a building lot measuring 23 m by 58 m. What is a reasonable value for the area of the lot?

A)

1334 m^{2}

B)

1200 m^{2}

C)

1000 m^{2}

D)

800 m^{2}

5

While vacationing in England, Roland bought an antique piano for 2800 pounds. Shipping to Canada was quoted at 25% of the price. A reasonable shipping charge is:

A)

500 pounds

B)

750 pounds

C)

900 pounds

D)

1250 pounds

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