Open Up - Grade 6 - Mathematics - Unit 6 - Lesson 10

Explain why the area of the large rectangle is 2a + 3a + 4a.

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6.EE.3

6.EE.4

Explain why the area of the large rectangle is (2 + 3 + 4)a.

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6.EE.3

6.EE.4

Is the area of the shaded rectangle 6(2-m) or 6(m-2)?

• 6(2-m)
• 6(m-2)

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6.EE.3

6.EE.4

Choose the expressions that do not represent the total area of the rectangle. Select all that apply.

• 5t+4t
• t+5+4
• 9t
• 4*5*t
• t(5+4)

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6.EE.3

6.EE.4

Evaluate the expression mentally.31 * 91 - 35 * 89

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6.EE.3

6.EE.4

Evaluate the expression mentally.22 * 87 + 22 * 13

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6.EE.3

6.EE.4

Select all the expressions that are equivalent to 4b.

• b + b + b + b
• b + 4
• 2b + 2b
• b * b * b * b

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6.EE.3

6.EE.4