Algebraic Expressions Quiz

• 13

• 9

• 10

• 12

Answer explanation

Substitute x = 3 into the expression 3x + 4 to get 3(3) + 4 = 13. Therefore, the correct answer is 13.

Tags

CCSS.6.EE.A.2C

• 5

• 7

• y

Answer explanation

The variable in the expression 5y + 7 is y because it represents an unknown value that can vary in the equation.

Tags

CCSS.6.EE.A.2B

• 4

• 16

• -16

• -4

Answer explanation

To solve the equation x - 6 = 10, add 6 to both sides to isolate x. x = 10 + 6 = 16. Therefore, the correct answer is 16.

Tags

CCSS.6.EE.B.7

• 8

• 3

Answer explanation

The constant in the expression 8 - 3m is 8 because it is a standalone number without any variable attached to it.

Tags

CCSS.6.EE.A.2B

• 29

• 27

• 45

• 20

Answer explanation

Using the order of operations, first calculate the expression inside the parentheses: 4 + 5 = 9. Then, multiply 3 by 9 to get 27. Finally, add 2 to 27 to get the final result of 27.

Tags

CCSS.7.NS.A.3

Write an expression for "five times a number decreased by two."

Answer explanation

To express 'five times a number decreased by two,' we use the expression 5n - 2, where 'n' represents the number.

Tags

CCSS.6.EE.A.2A

• Four times a number plus three

• Three times a number plus four

• Four plus three times a number

• Three minus four times a number

Answer explanation

The expression 4x + 3 can be interpreted as four times a number plus three, making the correct answer choice 'Four times a number plus three'.

Tags

CCSS.HSA-SSE.A.1A

Answer explanation

To simplify the expression 3(2x + 4), distribute the 3 to both terms inside the parentheses: 3 * 2x = 6x and 3 * 4 = 12. Therefore, the simplified expression is 6x + 12.

Tags

CCSS.6.EE.A.3

• 3

• 11

• -3

• -11

Answer explanation

To solve the equation, subtract 4 from both sides to isolate z. 7 - 4 = z, so z = 3. Therefore, the correct answer is 3.

Tags

CCSS.6.EE.B.7

• 16

• 10

• 13

• 8

Answer explanation

Substitute a=3 into the expression: 2(3+5) = 2(8) = 16. Therefore, the value of the expression is 16.

Tags

CCSS.6.EE.A.2C