Powers & Exponents
What is the value of 731
73
PEMDAS.
Parentheses, Exponents, Multiplication & Division from left to right, Addition & Subtraction from left to right.
What is the difference between an algebraic and numerical expression
An algebraic expression has variables and a numerical expression does not.
Write as an equation:
4 less than a number m is 12
m - 4 = 12
7.2 + m = m + 7.2
Commutative
Evaluate.
42+4
20
Evaluate
7 + (6 × 52 + 3)
160
Simplify by combining like terms:
8r +4r - 10
12r - 10
Write as an equation.
one-third of a number y plus 16 is equal to 21
1/3 y + 16 = 21
Which property is this?
3 x (y x 8) = (3 x y) x 8
Associative
What is the value of 6 cubed?
216
(102 / 52) + (52x2)
54
Simplify by combining like terms:
4(b - 4) -3b
b - 16
Write as an equation:
40 times a number z is 120.
40z =120
Use a property to write an equivalent expression. And name the property:
8 x 1 x q
8q
Identity
Compare
90 32
90 is less than 32
1 is less than 9
In the expression 7 - 24 / 8 x 4 + 6, which should be found first?
24 / 8
Simplify by combining like terms:
2u + 3t + 4tu - t + 5u - u
6u + 2t + 4tu
Evaluate when a = 4, b = 2, and c equals 1/2
ab + b + abc
14
Use the distributive property to simplify:
4(6v - 3)
24v - 12
103
Evaluate 7 x 4 / 2 + 42 /2 - 12
10
You have to hike 40 miles to reach your destination. You have already hiked 5 miles. You hike 6 miles each hour. Write an expression that represents the how many miles you have hiked after p hours.
And, did you reach your destination after 6 hours?
6p + 5
Yes.
Write as an equation. Then SOLVE for h.
6 times a number h increase by 5 is 47.
6h +5 = 47
h=7
What is the key word when using the commutative property? (and you'd better pronounce it correctly)
ORDER!