1. CREATED BY PAM SHEMBO

4. * FACTORS: Numbers that you multiply to have a product. Ex: Factors of 24 1X24= 24 2X12= 24 3X8 = 24 4X6 = 24 List: 1, 2, 3, 4, 6, 8, 12 and 24.

5. * MULTIPLES: The product of a given whole number and any other whole number. Ex: Multiples of 24: 24, 48, 72, 96, 120,...

6. * LEAST COMMON MULTIPLE OF 4 AND 5 * Mutiples of 4 : 4, 8, 12, 16, 20, 24, … * Mutiples of 5: 5, 10, 15, 20, 25, 30,… * LCM: 20

7. * PRIME NUMBERS: Numbers that only have 2 factors (1 and the number itself). Ex: 2 1X2 = 2 1,2 11 1X 11 = 11 1, 11 * COMPOSITE NUMBERS: Numbers that have more than 2 factors. Ex: 12 1X12= 12 2X6=12 3X4=12 1, 2, 3, 4, 6, 12

8. * ATTENTION! 1 and 0 are nor prime or composite! * SQUARE NUMBER: A number that has been multiplied by itself. Ex: 16 4X4= 16 25 5x5= 25

9. * EXPONENTS (EXPOSANTS): 5X5X5= 5 exponent 3 = 125

10. * 1. Commutative property: You can change the order of the factors. Ex: 50 X 4 = 4 X 50 2. Associative property: You can change the grouping of factors. Ex: (7 X 25) X 4 = 7 x (25 x 4)

11. * 3. Distributive property Ex: 4 X 28 = 4 X (20 + 8) = (4X20) + (4x8)= 112 * 4. Identical property Ex: 1 X 243 = 243 * 5. Zero property Ex: 0 x 243 = 0

12. * STEPS TO FOLLOW IN A DIVISION: * 1. Daddy-Divide (How many times the divisor goes into part of the dividend?) * 2. Mommy-Multiply * 3. Sister- Subtract * 4. Brother-Bring Down * 5. Daddy-Divide

13. * ORDER OF OPERATIONS: * 1. Parenthesis, brackets, braces (Go from the * inside to the outside) * 2. Exponents: 3X3X3 = 3 exponent 3 = 27 * 3. Divisions or multiplications in the order that they appear in the equation from left to right. * 4. Subtractions or additions in the order that they appear in the equation from left to right.

14. VOLUME OF A RECTANGULAR PRISM * Vol = Length X Width X Height * OR Vol = Base X Height AREA Of A RECTANGLE A = Length X Width AREA OF A SQUARE A = S X S OR A = S exponent 2

15. * PERIMETER OF A RECTANGLE * P = Length + Length + width + width * Or P = (Lx2) + (wx2) * PERIMETER OF A SQUARE * P = s+s+s+s * OR = s x 4

16. * ½= 50/100= 50% * ¼= 25/100= 25% * ¾ = 75/100= 75% * 1/3 = 33.3/100 =33.3% * 2/3 = 66.6/100= 66.6% * 1/8 = 12.5/100=12.5% * 1/5 = 20/100 = 20% * 1/10 = 10/100 =10%

17. * 1/4 + 1/6 = 3/12 + 2/12 = 5/12 * 2/3 – ½ = 4/6 – 3/6 = 1/6 * 3 ½ - 1 2/3= 3 3/6 - 1 4/6 = 2 9/6 – 1 4/6= 1 5/6.

18. * ½ X ¼ = 1/8 Multiply the numerators together and the denominators together. * 2 ¼ X 10 = 2 X 10 = 20 ¼ X 10 = ¼ X 10/1 = 10/4 = 10 ÷ 4 =2.5 20 + 2.5 = 22.5 = 22 and1/2 * 2 ¼ X 3 1/5 = 9/4 X 16/5 = 144/20 = 7 and 1/5 * For mixed number change them into improper fractions!

19. * 2 ÷ ¼ = 8 How many times ¼ goes into 2? * ¼ ÷ 2 = 1/8 If ¼ of a pizza is left and 2 children share this 1/4, how much of the whole pizza will each get?

21. * The Range: The difference between the biggest and the smallest number in a series of data. * The Mode: The number that is the most frequent in a series of data. * The Median: The number in the middle in a series of data when you have placed them from smallest to biggest. * The Mean (The Average): Find the sum of a series of numbers and then divide by how many numbers there are.

27. * Place these numbers from least to greatest: 0.517, 1.25, 0.3, 1.8 Strategy to use: ADD ZEROS 0.517, 1.250, 0.300, 1.800 Now place them from least to greatest 0.300, 0.517, 1.250, 1.800

28. * To add or subtract decimal numbers ADD ZEROS! * EX: 5 – 3.89 = * 5.00 * -3.89 * _____ * 1. 11

29. * When you add or subtract decimal numbers LINE UP DECIMAL POINTS AND ADD ZEROS. * EX: 3 + 2.258 = * 3.000 * + 2.258 * ___________ * 5. 258

30. * Multiplication of decimal numbers: DO NOT ADD ZEROS * 6.8 X 2.3 = * 6.8 One digit after the decimal point * X 2.3 One digit after the decimal point * ______ * 204 * + 1360 * ______ * 15.64 2 digits after the decimal point

31. * DIVISIONS OF DECIMAL NUMBERS * EX: 21.52 ÷ 0.8 = * 1. Estimate: 21 ÷ 1 = 21 * 2. Calculate without the decimal points: 2152 ÷ 8= 269 * 3. Compare: 21 and 269. What can you do so that 269 will be close to 21? Add a decimal point so the answer is 26.9. * 21.52 ÷ 0.8 = 26.9 * 4. Verify your answer: 26.9 × 0.8 = 21.52

32. US CUSTOMARYMETRIC SYSTEM 1 ft = 12 in 1 yd= 3 ft 1 mi = 5280 ft 1 mi = 1760 yd 1 cm = 10 mm 1 m= 100 cm 1 km = 1000 m KILO means 1000

33. US CUSTOMARY SYSTEMMETRIC SYSTEM 1 Gal = 4 qt 1 qt = 2 pt 1 pt = 2 c 1 Gal = 8 pt 1 Gal = 16 c 1 L = 1000 ml

34. US CUSTOMARYMETRIC SYSTEM 1 lb = 16 oz 1 T = 2000 lb 1 g = 1000 mg 1 kg = 1000 g 1 T = 1000 kg KILO means 1000