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Algebra 1 1-1 Guided Practice: Variables and Expressions

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Last updated over 5 years ago
21 questions
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A.SSE.1.a
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Question 1
1.

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10
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Question 8
8.

Question 9
9.

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Question 10
10.

Problem 2 Got it? What is an algebraic expression for 6 times a number n?

Enter only the expression, in simplest form.

Question 11
11.

Problem 2 Got it? What is an algebraic expression for the quotient of 18 and a number n?

Enter only the expression, in simplest form.

Question 12
12.

Question 13
13.

Question 14
14.

Question 15
15.

Question 16
16.

Question 17
17.

Question 18
18.

Question 19
19.

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A.SSE.1.a
10
Question 21
21.

Take Note: Summarize the mathematical content of this lesson. What topics, ideas, and vocabulary were introduced?

Solve It! Consider the population of Florida, the area of Colorado, and the flight time from Philadelphia to San Fransisco.


Which of these has a value that varies? Select the most appropriate option.
The population of Florida
The area of Colorado
The flight time from Philadelphia to San Fransisco
Question 2
2.

Take Note: What is a mathematical quantity?

Question 3
3.

Take Note: What is a variable?

Question 4
4.

Take Note: What is an algebraic expression?

Question 5
5.

Take Note: Provide an example of an algebraic expression.

Question 6
6.

Take Note: What is a numerical expression?

Question 7
7.

Take Note: Provide an example of a numerical expression.

Problem 1 Got it? What is an algebraic expression for 18 more than a number n?
n - 18
18 - n
18n
n + 18
Take Note: Match each mathematical operation on the left with the name for its result on the right.
Divide
Sum
Multiply
Difference
Add
Product
Subtract
Quotient
Problem 2 Got it? Reasoning: Do the phrases 6 less a number y and 6 less than a number y mean the same thing? Explain.
Yes, they both mean the same thing. They can also both be represented by the expression y - 6.
No, they do not both mean the same thing. 6 less a number y can be represented by the expression 6 - y. 6 less than a number y can be represented by the expression y - 6.
Problem 3 Got it? What is an algebraic expression for 8 less than the product of a number x and 4?
4x - 8
8 - 4x
\frac{x}{4} + 8
8(x + 4)
Problem 3 Got it? What is an algebraic expression for twice the sum of a number x and 8?
x + 2(8)
2(x + 8)
2x + 8
x(x + 8)
Problem 3 Got it? What is an algebraic expression for the quotient of 5 and the sum of 12 and a number x?
\frac{5}{12+x}
\frac{5}{12}+12
\frac{12}{5+x}
\frac{5}{x}+12
Problem 4 Got it? What word phrase can you use to represent the algebraic expression x + 8?
the number x times 8
the sum of a number x and 8
the number x less 8
the product of a number x and 8
Problem 4 Got it? What word phrase can you use to represent the algebraic expression 10x + 9?
ten times the sum of a number x and 9
the sum of ten times a number x and 9
a number x more than the product of 10 and 9
the sum of a number x and 9 times 10
Problem 4 Got it? What word phrase can you use to represent the algebraic expression \frac{n}{3}?
the sum of a number n and 3
the difference of a number n and 3
the quotient of a number n and 3
the product of a number n and 3
Problem 4 Got it? What word phrase can you use to represent the algebraic expression 5x - 1?
five more than 1 times a number x
the sum of 5 and the product of 1 and a number x
five times a number x less 1
five times a number x plus 1
Question 20
20.

Problem 5 Got it? Suppose you draw a segment from any one vertex of a regular polygon to the other vertices. A sample for a regular hexagon is shown.

Use the table to find a pattern.
A
B
C
D