What Property Am I?
4 + 3 = 3 + 4
Commutative Property of Addition
3 (5-2) + 9
Parenthesis
9 is the coefficient of 7p + 9
False!
Write the decimal number that represents fifty four and two tenths
54.2
Solve for w
w - 9 = 37
w = 46
7 x (3 x 4) = (7 x 3) x 4
Associative Property of Multiplication
2 x 15 - 33
Exponents
8 multiplied by h is 8h
True!
In the problem 6.52 x 4.1, how many places do we move the decimal point in the answer and in what direction?
3 places - you would start at the right and move the decimal point left
Evaluate 12c - 3 if c=2
12 (2)- 3
24-3
21
9(6-3) = 9(6) - 9(3)
Distributive Property
13 + 6 - 2
Addition
The inverse operation of subtraction is addition
True!
What is the first step when subtracting or adding decimals?
Line up the decimals
Write the expression for a number increased by 45
n + 45
31 x 1= 31
Identity Property of Multiplication
21 - 5 + 7
Subtraction
12f - 2 is an equation
False!
3.2 + 14.31 + 7.58=
25.09
Write an expression for 6 less than y
y- 6
Commutative Property changes the ________ of numbers and Associative Property changes the ________ of parenthesis
(must be able to give both answers in the correct order)
Order
Grouping
8 + 49 / 7 + 2(4) - 1
Division
Multiplication always comes before Division when using PEMDAS/ Order of Operations
FALSE!!!!!!
86.4 / .12=
720
Set up an algebraic equation for this problem
Henry needs to sell 20 candy bars for a football fundraiser by Friday. So far, he has sold 7 candy bars. How many candy bars does he still need to sell?
h + 7 = 20