Classifying Numbers (6.2A)
True or False: All whole numbers are integers.
True
What is the opposite of -7?
7
Put these in order (least → greatest): -3, 0, 5
3, 0, 5
Write 0.5 as a percent.
50%
What fraction equals 50%?
1/2
Place these sets in order from largest to smallest: Whole Numbers, Rational Numbers, Integers.
Rational Numbers → Integers → Whole Numbers
What is the absolute value of -12?
12
Which is greater: -4 or -6?
-4
Write 25% as a fraction in simplest form.
1/4
What percent is equal to 1/4?
25%
Which set(s) does -15 belong to?
Integers, Rational Numbers
A submarine is 150 feet below sea level. Write the integer that represents its position. What is its opposite?
-150; opposite = 150
Order from least → greatest: 3/4, 0.8, 7/10
7/10 (0.7), 3/4 (0.75), 0.8
A shirt is on sale for 30% off. What fraction is this equal to?
3/10
Shade 33 1/3% on a 10x10 grid. How many squares would be shaded?
About 33 squares
True or False: Every integer is a rational number. Explain why.
True — integers can be written as fractions.
Explain how the absolute value of -25 is the same as the absolute value of 25.
Both = 25 (distance from zero is the same).
Order: -20, 15, -10
-20, -10, 15
A test score of 0.9 is equal to what percent?
90%
A restaurant bill is $60. Estimate 10% of the bill.
$6
Give one example of a number that is rational but NOT an integer. Explain why.
Example: 1/2, 0.25, -3/4 (rational but not whole/integer because it’s a fraction/decimal).
Compare:
|-3| ___ -3 and |5| ___ -7
|-3| > -3 and |5| > -7
Order from least → greatest: -1.25, -1.2, -1.5, -1.05
-1.5, -1.25, -1.2, -1.05
Convert 2/5 into both a decimal and a percent.
0.4, 40%
50% of 20 students like basketball. How many students is that?
10 students