• Thirty days hath September,

    April, June, and November.

    All the rest have thirty-one,

    Except February, which has 28—

    or in a leap year 29.

     

    ADDENDS are numbers that are added

    SUM - answer in ADDITION

     

    DIFFERENCE - answer in SUBTRACTION

     

    FACTORS are numbers that are multiplied

    PRODUCT - answer in MULTIPLICATION

    MULTIPLES are products of two numbers

     

    DIVIDEND is the number BEING divided

    DIVISOR is the number doing the dividing

    QUOTIENT - answer in DIVISION

     

    HORIZONTAL lines extend left and right

    VERTICAL lines extend up and down

    OBLIQUE lines appear slanted

    PARALLEL lines stay the same distance apart

    INTERSECTING lines are lines that cross

    PERPENDICULAR lines intersect & form right angles

     

    NUMERATOR is the number UP

    DENOMINATOR is the number Down

     

    OPERATIONS are addition, subtraction,

    multiplication, and division

     

    PARENTHESES show order (do first)

    Order of Operations:  PEMDAS 

         Parentheses

         Exponents

         Multiplication/Division

         Addition/Subtraction

     

    0 - 4  stay the same

    5 - 9  go up one

     

    1 min = 60 sec

    1 hr = 60 min

    1 day = 24 hrs

    1 week = 7 days

    1 month = 4 weeks

    1 yr = 52 weeks

    1 yr = 12 months

     

    common year = 365 days

    leap year = 366 days

    1 decade = 10 years

    1 century = 100 years

    1 millennium = 1,000 years                   

     

    1 cm = 10 mm

    1 m = 100 cm

    1 m = 1,000 mm

    1 km = 1,000 m

     

    1 L = 1,000 mL

     

    1 g = 1,000 mg

    1 kg = 1,000 g

      

    PERIMETER is the distance around an object

    AREA is the size of the inside of a flat shape

    A = lw

    VOLUME is the amount of space something occupies

    CIRCUMFERENCE is the distance around a circle

     

    1 ft = 12 in.

    1 yd = 3 ft

    1 mi = 5,280 ft

    1 mi = 1,760 yd

     

    1 cup = 8 oz

    1 pt = 2 cups

    1 qt = 2 pt

    1 gal = 4 qt

     

    1 lb = 16 oz

    1 ton = 2,000 lb

     

    PRIME numbers have exactly two factors

    COMPOSITE numbers have more than two factors

     

    RECIPROCAL is reversing the numerator and the

    denominator

     

    GCF is the Greatest Common Factor

    LCM is the Least Common Multiple

     

    triangle has 3 sides

    quadrilateral has 4 sides

    square has 4 sides

    rectangle has 4 sides

    pentagon has 5 sides

    hexagon has 6 sides

    heptagon has 7 sides

    octagon has 8 sides

    nonagon has 9 sides

    decagon has 10 sides

     

    SQUARE NUMBER is the number you get when you multiply an integer by itself.

    1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144

     

    1-January, 2-February, 3-March, 4-April, 5-May, 6-June, 7-July,

    8-August, 9-September, 10-October, 11-November, 12-December

     

    WINTER:  December, January, February

    SPRING:  March, April, May

    SUMMER:  June, July, August

    FALL:  September, October, November

     

    Roman Numerals

    1 – I                   

    2 – II                  

    3 – III                 

    4 – IV                 

    5 – V                  

    6 – VI

    7 – VII

    8 – VIII

    9 – IX

    10 – X

     

    50 – L

    100 – C

    500 – D

    1,000 – M

     

    5,000 – V (V with a line on top)