Deck 7: Decimals

Question 1

If 250 feet of Type NM cable costs $55.90, 200 feet will cost ____________________.

Answer 1

$22.36

Question 2

The weight of a certain wire is 240 pounds per 1,000 feet. What is the cost of 600 feet of this wire at $1.65 per pound?

Answer 2

$237.60

Question 3

You pay $3,245.64 for materials and $650.00 for labor to wire a basement. If you are paid $4500.00 for the job, you will have a profit of ____________________.

Answer 3

$604.36

Question 4

712.3 minus 650.59 = ____________________.

Question 5

If you buy three tools that cost $29.99, $15.50, and $8.95, what is the total cost of the tools?

A) $44.54
B) $44.45
C) $54.54
D) $54.44

Question 6

39.02 + 6.1 + 12.88 = ____________________.

Question 7

A shim is made 0.0025 inch thick. The thickness should be 0.00225 inch. The difference in thickness is ____________________ inch.

Question 8

The third number to the right of the decimal point is in the __________ position.

A) tenths
B) thousandths
C) hundreds
D) thousands

Question 9

If 0.75 square of shingles can be applied in one hour, how long will it take to apply 9.5 squares?

Question 10

0.18 ´ 0.27 = ____________________.

Question 11

419 divided by .75 = ____________________.

Question 12

23.73 plus 9.18 = ____________________.

Question 13

What is the cost of 1250 feet of BX cable if it sells for $0.495 per foot?

Question 14

5.302 ´ 4.9 = ____________________.

Question 15

Decimal numbers of less than 1 are called __________.

Question 16

623.15 divided by 12.9 = ____________________.

Question 17

1,002.62 + 431.1 + 1.545 = ____________________.

Question 18

12.6 minus 3.3 = ____________________.

Question 19

6.6 ´ 2.3 = ____________________.

Question 20

Which pipe has a larger internal diameter?

A) Schedule 40
B) Schedule 80
C) Schedule 120
D) All have the same internal diameter.

Question 21

Explain what a decimal fraction is.