Definitions
Properties of Operations
Missing Numbers
100

The numbers we say when we count (1, 2, 3, 4, 5, 6...)

What are counting or natural numbers?

100

Letters that are used to represent numbers in expressions and formulas.  

What is a variable?

100

n + 8 = 24

What is 16?

200

The name of the numbers that are multiplied to get the product.  a X b = C

What are factors?

200

When zero is added to a given number the sum is the number.  A + 0 = A

What is the identity property of addition?

200

5 x 6 = n

What is 30?

300

The name of numbers that are added together to make a sum. a + b = C

What are addends?

300

The grouping of factors does not change the product.  (a x b) x c = a x (b x c)

What is the associative property of multiplication?

300

13 + N + 12 = 32

What is 7?

400

The name of the number that is divided by the divisor that results in a quotient?  

What is a dividend?

400

The next number is the sequence 25, 36, 49, ...

What is 64? or What is 66?

The sequence can be the next Perfect Square or adding the next prime number

400

2 x 6n = 36

What is 3?

500

In subtraction, the name of the number that is subtracted from the minuend to get the difference?

What is a subtrahend

500

The rule of the sequence is K = 3(n) - 1. Find the first 4 terms

What is 2, 5, 8, 11?

500

30 + 6 - (5n +6) = 10

What is 4?