Factors: The numbers that are multiplied to give a product

Example:

3 x 4 = 12Factors Product

Prime Number: Any whole number greater than 1 and has exactly 2 factors, the number itself and 1

Example: 7

is a

prime number

7 x 1= 7 therefore

Non -Example

7 only has 2 factors 1 and 7, therefore it’s a prime

number.

1 x 9 = 9

3 x 3 = 9

9 is a NOT prime

number

9 has 3 factors 1,3, and 9, therefore it’s NOT a prime number.

therefore

The Parts of Division

3 4 3DIVISOR 14

QUOTIENT

DIVIVEND1

R1 REMAINDER

ROUNDING HOUSE PARTYRound 24.7 to the nearest whole number.

24 7 24 7

Knock! Knock!

Hello?!

24 7

Are you a 5 or greater?

YES!!!

25

Then Join the

PARTY!!

Place whole number in house party box

The Number outside knocks to come inside

The number must be a 5 of greater to come

inside the party

The number of the party goes up 1 because 1 more has been

added!

Decimals: a number with one or more places to the right of the decimal

Example:

376Whole Number

Decimal Point

45Tenths Hundredths

How you say it: Three hundred seventy six and forty five hundredths

Decimal point: separates the whole number and the decimal number

Example:

376Whole Number

Decimal Point

45Tenths Hundredths

Fraction: Names part of a set or part of a region

Example of set:

23

Of the set is shaded.

Example of region

27

Of the region is shaded

Parts of a Fraction

59

Numerator

Denominator

How you say it: Five ninths

What clue words let me know I should Add (+)?

Add sum

addition

All together

combined

greater

gain

total

plus

What clue words let me know I should subtract (-)?

subtractdecreased

Take away

minus

reduced

How many fewer than?

How many left?

Less than

Loss of

How many more than?

What clue words let me know I should division (÷)?

each

per

every

Divided by

Equal parts

How many for each?

into

divisorHow many groups?

What clue words let me know I should multiply (x)?

multiply each

times

All together

at

every

Groups of

totalproduct

Estimate: An approximate number rather than and exact number.

There are an estimated 300 jelly

beans in the jar.

Equivalent Fractions: Fraction that have the same amount

Rounding: Expressing a number to the nearest ten, hundred, thousand and so on

Example: Round 45,678 to the nearest hundredsStep 1: Identify digit in the hundredsStep 2: Identify the its neighbor to its rightStep 3: If the right neighbor is a 5 or greater raise the

hundred up 1 it is not the hundred stays the same.Step 4: Rewrite the number turning all numbers before the

hundreds into zeros.

45,678 45,700

Negative Number: any number less than zero

+3-3

Copyright ©, Long Beach Unified School District. All rights reserved.- Grade 5

4 10

2 5

2 5

6

15

You can multiply both the numerator and denominator of a fraction by any number except zero to find equivalent fractions.

Ch. 16 L 2

Copyright ©, Long Beach Unified School District. All rights reserved.- Grade 5Ch. 16 L 2

You can divide both the numerator and denominator of a fraction by any number except zero to find equivalent fractions.

4 6

8 12

4 6

2 3

Copyright ©, Long Beach Unified School District. All rights reserved.- Grade 4 19

129

43

2 6

2 3

3 31

1

3 3=

322129

43

6

2 3

31

1

3 3=

322 ×

Simplifying Fractions!

×

×

Simplest Form