Chapter 3 Test: Expressions

• 10 - 9yz

• -2 - 9yz

• -10 - 9yz

• yz

Tags

CCSS.6.EE.A.3

Four math students post their answers to a homework problem on the board. Loraine: -3(x - 2) - 2x Jennifer: -5(x - 1) + 1 Heather: -5x + 6 Bradford: 4x + 24 Three of the four students are correct. Which student got the question incorrect?

• Loraine

• Jennifer

• Heather

• Bradford

Tags

CCSS.6.EE.A.4

Four students factor the original expression 21x - 7y. The table shows the students’ responses. | Student | Response | |---------|----------| | 1 | 7(3x - y) | | 2 | -7(-3x + y) | | 3 | 3(18x - 4y) | | 4 | -3(-18x + 4m) | Which statement is true?

• Only Student 1 creates a factored expression equivalent to the original.

• Only Student 3 creates a factored expression equivalent to the original.

• Students 1 and 2 create factored expressions equivalent to the original.

• Students 3 and 4 create factored expressions equivalent to the original.

Tags

CCSS.7.EE.A.1

• 0.6x

• 1.6x

• 2.4x

• 4.0x

Tags

CCSS.6.EE.A.3

Stella is simplifying the expression 11(x - 3) + 5(6 - x). Her work and justification are shown in the table. In which step did Stella incorrectly identify the property she used?

• Step 1

• Step 2

• Step 3

• None of the above. Stella correctly identified each of the properties she used.

Tags

CCSS.6.EE.A.3

At a coffee shop, cups of both caffeinated and decaffeinated coffees cost $1.29 each. Which expression represents the cost of purchasing d cups of decaffeinated coffee and c cups of caffeinated coffee?

• 1.29d + c

• d + 1.29c

• 1.29dc

• 1.29d + 1.29c

Tags

CCSS.HSA-SSE.A.1A

Tags

CCSS.7.EE.B.4A

Between which two steps is Maria's first mistake seen?

• A) Given and Step 1

• B) Step 1 and Step 2

• C) Step 2 and Step 3

• D) Step 3 and Step 4

Tags

CCSS.8.EE.C.7B

A student simplifies the expression correctly. 3x + 10/2 + 4(x + 3/2). Which could be the student’s result?

• 7x + 13/2

• 7x + 11

• x + 7

• x + 17

Tags

CCSS.6.EE.A.3

The rectangle below has a width of 2 units. The area of the larger rectangle is 4h, and the area of the smaller rectangle is 2j. Which expression is equivalent to the missing length, x?

• 2h + j

• 4h + 2j

• h + j

• 2h + 2j

Tags

CCSS.7.EE.B.4A