VA Math 78 Number Sense Review

Absolute Value

100

What does absolute value mean?

The distance from zero

200

Find the absolute value of 5

5

300

What is the symbol for absolute value?

|  |

400

Find the absolute value of (-9 - 3)

12

Square Roots

100

Evaluate 10²

100

200

What is the square root of 25?

5

300

Between which two numbers is the square root of 46?

Between 6 and 7

400

Between which two numbers is the square root of 131?

Between 11 and 12

Fractions Decimals and Percents

100

True or False: 

0.48 < 48%

False.

0.48 = 48%

200

True or False:

0.3 > 1/3

False.

0.3 < 1/3

300

Change 0.6 to a percent and a fraction.

(Simplify your fraction.)

60%

3/5

400

Put in ascending order:

1/4,  28%,  0.05,  0.5

0.05,  1/4,  28%,  0.5

Real Numbers

100

17 belongs to which number sets?

Natural, Whole, Integer, Rational, Real

200

What kind of number is Pi?

Irrational, real

300

-42 belongs to which number sets?

Integer, Rational, Real

400

Is the square root of 24 a rational or irrational number?

Irrational