Math Terms

Question 1

Digits (1,423.795)

Answer 1

0, 1, 2, 3, 4, 5, 6, 7, 8, and 9
Every digit in a number represents a multiple of ten. For example: 1,423.795 
1 occupies the thousands place
4 occupies the hundreds place
2 occupies the tens place
3 occupies the ones, or units place
7 occupies the tenths place (7/10)
9 occupies the hundreths place (9/100)
5 occupies the thousandths place (5/1000)

Question 2

Integers

Answer 2

The numbers you see on a number line; include negatives and zero; any integer is considered greater than all of the integers to its left on the number line. So -4 > -10 etc.

Question 3

Zero

Answer 3

Not positive or negative, but it is even. Called the additive identity, meaning that adding zero to any other number doesn’t change anything.

Question 4

Positives and negatives
PxP=
PxN=
NxN=

Answer 4

PxP=P
PxN=N
NxN=P

Question 5

Even and Odd

Answer 5

Even numbers are multiples of 2, odd numbers are not multiples of 2.

• any number times and even number yields an even number
• the product of two or more odd numbers is always odd
• the sum of two or more even numbers is always even
• the sum of two odd numbers of always even
• the sum of an even and an odd number is always odd

Question 6

Prime Numbers

Answer 6

Numbers only divisible by themselves and 1.

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Question 7

Factors and multiples

Answer 7

The numbers multiplied to produce the product. Best way to find all factors is to start at one and pair them up. Take 120:
1 and 120
2 and 60
3 and 40
4 and 30
5 and 24
6 and 20
8 and 15
10 and 12
When the factors can't get any closer you're done. Every number has a finite number of factors

Question 8

Prime Factorization

Answer 8

The decomposition of a composite number into smaller non-trivial divisors that when multiplied together equal the original integer.
Eg. 120 breaks down into 2x2x2x3x5,

Question 9

Multiples

Answer 9

any number that can be multiplied with another; multiples trail off into infinity.
Factor are few, multiples are many.

Question 10

Order of Operations

Answer 10

Please Excuse My Dear Aunt Sally
Parenthese, Exponents, Multiplication&Division, and Addition&Subtraction.
Perform M&D from left to right and all A&S fro left to right.