Add/Subtract Integers
What is the sum of -6 + 2?
The sum is -4
What is the greatest common factor between 16 and 30?
The GCF is 2
5/6 - 4/6 = ?
1/6
How many terms are there in the expression below?
5 + x + 3y - 8x - 10
There are 5 terms
5, x, 3y, -8x, and -10
What does GEMS stand for?
G - Groups
E - Exponents
M - Multiplication/Division
S - Subtraction/Addition
What pattern do you notice about the expressions below?
-5 + 5 = ?
4 - 4 = ?
7 + (-7) = ?
The sum for all 3 expressions all equal 0.
What is the least common multiple between 14 and 8?
The least common multiple is 56
3/5 + 1/3 = ?
14/15
Combine like terms.
3x + 5y + 3 - 8 + 3y
8y + 3x - 5
Looking at the expression below, which operation would you perform first?
4 + 2 - 6
Addition should be done first. You should read the problem from left to right to determine whether or not you add or subtract first; the rule applies to multiplication and division as well.
Charles wants to buy a pair of shoes for $57. They are on sale for $25 off the original price. How much do they cost after the discount?
The shoes will cost $32 after the discount
What is the Least Common Multiple between 12 and 5?
60
Find the least common denominator between the set of fractions below.
2/9, 5/6
The least common denominator is 18.
Combine to the smallest number of terms.
8x - 3y + 4 - 5x + 9y
3x + 6y + 4
Simplify.
23 + 15 – 6 · 3
20
Blanca says we can rewrite the expression
-17 – (-2) as -17 + (-2). Are they correct?
Explain.
No, because when we have a subtraction symbol next to a negative number it becomes addition/the number turns positive. Blanca changed the expression to addition but forgot to make the -2 positive. It should be -17 + 2.
What is the Greatest Common Factor between 72 and 112
The GCF is 8
What is the value of the expression below?
1/3 + 1/6 + 1/12= ?
7/12
Combine for the fewest number of terms.
2(1-5n) - 7n
2 - 17n
What is the value of
7^2–2[3 + 2(5 – 1)]?
27
Simplify the expression below
3 + (-2 + 5) – 4 + (-6)
-4
List three numbers with the greatest common factor of 16
16, 32, and 48
Find the value of the unknown fraction.
__ - 3/4 = 2/3
17/12
Combine to get the smallest number of terms possible.
3x(3 + 4y) + 2y - 6 - 4x
5x + 12xy + 2y - 6
Simplify the expression below. Leave your
answer as a fraction in lowest terms.
1/2 + 3/4 - 1/2
3/4