Variables and Grouping
The expression 4(5-2) equals this number.
What is 12?
The center dot symbol in 3 · 8 is one way of writing this operation.
What is multiplication?
The word 'more' means your word problem might involve this operation.
What is addition?
This property states that every number is equal to itself.
What is the reflexive property of equality?
The multiplication problem 4·4·4·4·4 can be written more quickly as this.
What is 45?
The expression 7 + 3x equals this when x = 2.
What is 13?
This is the opposite of the number -28.
What is 28?
The word 'less' means your word problem might involve this operation.
What is subtraction?
This property states that addition gives the same result in any order.
What is the commutative property of addition?
The product of the terms 3a · 3b can be written as this one term.
What is 3a+b?
The area of a rectangle is its length times its width. A rectangle with length L = 5 and width W = 9 has this area.
What is 45?
This operation is defined as adding an opposite, such as
4 + (-10).
What is subtraction?
The word 'by' means your word problem might involve this operation.
What is multiplication?
This property states that a true equation is still true if you multiply both sides of it by the same number.
What is the multiplication property of equality?
This power of 2 is equal to 8.
What is 3? (23 = 8)
The equation x + 4 =20 is true when x is this number.
What is 16?
This is the reciprocal of the number 4/5.
What is 5/4?
The word 'per' means your word problem might involve this operation.
What is division?
The property of opposites says that the sum of any number and its opposite is always this.
What is 0?
Any number to the 0th power always equals this.
What is 1? (x0 = 1 for any x ≠ 0)
The equation 3y - 9 = 0 when y is this number.
What is 3?
This operation is the same as multiplying by a reciprocal, such as
6 · (1/3).
What is division?
The sentence "The area of a 10 foot by 12 foot room is 120 square feet" translates to this eqation.
What is 10 · 12 = 120?
The multiplicatve identity is 1 because of this fact.
What is 'any number times 1 equals itself'?
The fraction 1/25 can be written as this power of 5.
What is 5-2?