Substitution

Substitution

7th - 9th Grade

15 Qs

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Substitution

Substitution

Assessment

Quiz

Mathematics

7th - 9th Grade

Practice Problem

Hard

Created by

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is substitution in algebra?

The process of replacing a variable with a number or another expression to simplify or solve an equation.

A method of factoring polynomials to find roots.

A technique used to graph linear equations on a coordinate plane.

A way to combine like terms in an algebraic expression.

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If a = 4 and b = 6, what is the value of 3a + 5b?

30

36

42

48

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

How can you check your answer after evaluating an expression?

By ignoring the substituted values and moving on

By re-evaluating the expression with the substituted values to ensure the calculations are correct

By asking someone else to check your work

By writing down the answer and forgetting about it

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the formula for calculating the value of an expression with two variables?

The formula involves substituting the values of the two variables into the expression and simplifying it.

The formula is to add the two variables together.

The formula requires multiplying the two variables and then adding a constant.

The formula is to divide the first variable by the second variable.

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the value of 2c - a - b when a = 4, b = 5, and c = 6?

1

2

3

4

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the result of 5m - 2n when m = 3 and n = 7?

-1

0

1

2

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the general approach to solving application-based questions in algebra?

Understanding the problem, identifying the variables, substituting known values, and simplifying the expression to find the solution.

Only substituting known values into the equation without understanding the problem.

Ignoring the variables and focusing solely on the final answer.

Using trial and error to guess the solution without any calculations.

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