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Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 2

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Math

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Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 2
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6 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

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Which of the changes would keep the hanger in balance? Select all that apply.

Adding two circles on the left and a square on the right
Adding 2 triangles to each side
Adding two circles on the right and a square on the left
Adding a circle on the left and a square on the right
Adding a triangle on the left and a square on the right

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2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

Here is a balanced hanger diagram. Each triangle weighs 2.5 pounds, each circle weighs 3 pounds, and x represents the weight of each square. Select all equations that represent the hanger.

x + x + x + x + 11 = x + 11.5
2x = 0.5
4x + 5 + 6 = 2x + 2.5 +6
2x + 2.5 = 3
4x + 2.5 + 2.5 + 3 + 3 = 2x +2.5 + 3 + 3 + 3

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8.EE.8.c

3.

OPEN ENDED QUESTION

3 mins • 1 pt

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What is the weight of a square if a triangle weighs 4 grams?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

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What is the weight of a square if a triangle weighs 4 grams?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

Andre came up with the following puzzle. “I am three years younger than my brother, and I am 2 years older than my sister. My mom's age is one less than three times my brother's age. When you add all our ages, you get 87. What are our ages?"Try to solve the puzzle.

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

Andre came up with the following puzzle. “I am three years younger than my brother, and I am 2 years older than my sister. My mom's age is one less than three times my brother's age. When you add all our ages, you get 87. Jada writes this equation for the sum of the ages: (x) + (x +3) + (x -2) + 3(x +3) -1 = 87. Explain the meaning of the variable and each term of the equation.

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