1. Factors: The numbers that are multiplied to give a product Example: 3 x 4 = 12 Factors Product

2. 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

3. The Parts of Division 3 43 DIVISOR 14 QUOTIENT DIVIVEND 1 R1 REMAINDER

4. ROUNDING HOUSE PARTY Round 24.7 to the nearest whole number. 24 7 7 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!

5. Decimals: a number with one or more places to the right of the decimal Example: 376 Whole Number Decimal Point 45 TenthsHundredths How you say it: Three hundred seventy six and forty five hundredths

6. Decimal point: separates the whole number and the decimal number Example: 376 Whole Number Decimal Point 45 TenthsHundredths

7. Fraction: Names part of a set or part of a region Example of set: 2 3 Of the set is shaded. Example of region 2 7 Of the region is shaded

8. Parts of a Fraction 5 9 Numerator Denominator How you say it: Five ninths

9. What clue words let me know I should Add (+)? Add sum addition All together combined greater gain total plus

10. What clue words let me know I should subtract (-)? subtract decreased Take away minus reduced How many fewer than? How many left? Less than Loss of How many more than?

11. What clue words let me know I should division (÷)? each per every Divided by Equal parts How many for each? into divisor How many groups?

12. What clue words let me know I should multiply (x)? multiply each times All together at every Groups of total product

13. Estimate: An approximate number rather than and exact number. There are an estimated 300 jelly beans in the jar.

14. Equivalent Fractions: Fraction that have the same amount

15. Rounding: Expressing a number to the nearest ten, hundred, thousand and so on Example: Round 45,678 to the nearest hundreds Step 1: Identify digit in the hundreds Step 2: Identify the its neighbor to its right Step 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. 45,67845,700

16. Negative Number: any number less than zero +3 -3

17. Copyright ©, Long Beach Unified School District. All rights reserved.- Grade 5 4 10 2525 2525 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

18. Copyright ©, Long Beach Unified School District. All rights reserved.- Grade 5 Ch. 16 L 2 You can divide both the numerator and denominator of a fraction by any number except zero to find equivalent fractions. 4646 8 12 4646 2323

19. Copyright ©, Long Beach Unified School District. All rights reserved.- Grade 4 19 2 6 2 3 3 3 1 1 33 = 322 6 2 3 3 1 1 33 = 322 × Simplifying Fractions! × × Simplest Form