Cycle 1, 2, & 3 Math Laws, Areas, equivalents Flashcards
Teaspoons and Tablespoons
3 teaspoons = 1 tablespoon
2 tablespoons = 1 fluid ounce
Liquid Equivalents
8 fluid ounces = 1 cup
2 cups = 1 pint
2 pints = 1 quart
4 quarts = 1 gallon
Linear Equivalents
2.54 cm = 1 in.
12 in. = 1 ft.
5280 ft = 1 mi.
1 km = 5/8 mi.
Metric Measurements
10 mm = 1 cm
100 cm = 1 m
1000 m = 1 km
Area of a rectangle
The are of a rectangle equals length times width.
Area of a Square
The area of a square equals length of its side squared.
Area of a triangle
Area of a triangle equals one-half base times height.
Area of a circle
Area of a circle equals pi. (3.14) times the radius squared.
Circumference of a Circle
The circumference of a circle equals two times pi. (3.14) times the radius.
The Associative Law
The Associative Law for addition states:
(a + b) + c = a + (b + c)
The Associative Law for multiplication states:
(a x b) x c = a x (b x c)
The Commutative Law
The Commutative Law for addition states:
a + b = b + a
The Commutative Law for multiplication states:
a x b = b x a
The Distributive Law
The Distributive Law states:
a(b + c) = ab + ac
The Identity Law
The Identity Law for addition states:
a + 0 = a
The Identity Law for multiplication states:
a x 1 = a
Squares
1x1=1
2x2=4
3x3=9
4x4=16
5x5=25
6x6=36
7x7=49
8x8=64
9x9=81
10x10=100
11x11=121
12x12=144
13x13=169
14x14=196
15x15=225
Cubes
1x1x1= 1
2x2x2= 8
3x3x3= 27
4x4x4= 64
5x5x5= 125
6x6x6= 216
7x7x7= 343
8x8x8= 512
9x9x9= 729
10x10x10= 1000
11x11x11= 1331
12x12x12= 1728
13x13x13= 2197
14x14x14= 2744
15x15x15= 3375