1.1 Variable Expressions
1.2 Powers
1.3 Order of Operations
1.4 Comparing and ordering Integers
Mix Review
100
Evaluate the expression when s=5, 12s
60
100
What is 2 to the 4th power?
16
100
Evaluate the expression. 9(10.6+7.3)
161.1
100
Write 5 examples of positive and negative integers.
Answer may vary, example: -3, -2, -1, 1, 2
100
Evaluate the expression. 12 times 3 minus 18 divided by 6.
33
200
Evaluate the expression when m=9, m+16
25
200
Label: 3(_______) 4 (_____)
4 is the base and 3 is the exponent
200
Evaluate the express 3(x-y)^2, when x=7 and y=3. (^2 is squared)
48
200
|-9|
9
200
Evaluate -x+7, when x=-8.
15
300
What is a variable expression to represent: the difference of 18 and a number?
18-n
300
A ______ is the result of a repeated multiplication of the same factor.
What is a "power"?
300
What are two common grouping symbols?
Parentheses and brackets
300
Two numbers are ________ if they have the same absolute value but different signs.
What are "opposites"?
300
Write the product using an exponent in words. 21*21*21
twenty-one cubed?
400
A ______ ________ consists of numbers, variables, and operations. Ex: 10-c
What is a "variable expression"?
400
What is the formula for the volume of a cube?
3 What is V=s
400
What is the order of operations? (according to the textbook and notes. 4 steps)
1. Evaluate expressions inside grouping symbols. (Parentheses, brackets) 2. Evaluate powers. (Exponents) 3. Multiply and divide from left to right. 4. Add and subtract from left to right.
400
The ______ _______ of a number is its distance from 0 on a number line.
What is "absolute value"?
400
A _____ _____ describes a problem using words as labels and using math symbols to relate the words.
What is a "verbal model"?
500
To _______ a variable expression, substitute a number for each variable and solve the resulting numerical expression.
What is "evaluate"?
500
Find the area of a square with the side length of 14mm.
2 A=196mm
500
To start your scrapbook hobby, you bought a scrapbook for $19.99, 2 scissors for $5.50 each, and 3 cropping tools for $8.25 each. (Find the total cost.) First, make a verbal model of the plan. Then, solve the problem.
Total cost= Cost of scrapbook + number of scissors * cost of scissors + Number of cropping tools * Cost of cropping tools 19.99+2*5.5+3*8.25 19.99+11+24.75 = 55.74 The total cost is $55.74.
500
Evaluate the expression |x|-4, when x=-10.
6
500
You have $120 in your bank account. Write an expression to represent how to find the amount you have in your bank account after you deposit $28. (d=28) Then evaluate the expression. (Hint: there are 3 parts to the answer)
120+d 120+28 =148
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