Key vocabulary
Define integer
Whole numbers and their opposites
When adding integers with the same sign _______ and ________.
When adding integers with the same sign add and keep the sign.
Compare using <, >, or =:
-12 ___ -8
-12 < -8
-6 + -3
-9
Write 3/5 as a decimal
0.6
Define opposite AND provide an example
Two numbers that are the same distance from zero on the number line
Ex. 8 and -8
A positive x a negative = ________.
A positive x a negative = a negative.
Compare using <, >, or =:
-1/2 ___ -3/4
-1/2 > -3/4
-28/7
-4
Write 0.6 repeated as a fraction in simplest form.
2/3
What is the difference between product and sum?
Product is the answer to a multiplication problem and sum is the answer to an addition problem.
When adding integers with different signs _____________________.
When adding integers with different signs subtract and keep the sign of the large number.
Compare using <, >, or =:
0.6 ___ 3/5
0.6 = 3/5
-5 x -3
15
Write 1/8 as a decimal
0.125
For each of the following describe what type of number would be used (+, -, 0)
Deposit
Above Sea Level
Below zero
Withdraw
Sea Level
Deposit: +
Above Sea Level: +
Below zero: -
Withdraw: -
Sea Level: 0
A negative x a negative = ____________
A negative x a negative = a positive
Order from least to greatest:
0, -1.3, 6.1, -1.8
-1.8 < -1.3 < 0 < 6.1
-12 + 5
-7
Write 0.875 as a fraction in simplest form.
7/8
Define rational numbers
Can be written as a quotient of two integers
Subtracting is the same as ________
Subtracting is the same as adding the opposite.
Order from least to greatest:
0, 1/6, -0.25, -1/3, 0.25, -1 1/2
-1 1/2 < -1/3 < -0.25 < 0 < 1/6 < 0.25
Rewrite as addition and simplify:
-3 - (-7)
-3 + 7
4
Write -0.5 as a rational number.
- 1/2