7.6.18

Example of how to write an equivalent expression using only addition.
Ex: 153 - 7 + 92 - 87
Subtracting a number can be rewritten as plus a negative. So 
a - b is the same as a + (-b)
Answer: 

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1. For each expression, write an equivalent expression that uses only addition.
a) 20 - 9 + 8 - 7

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1. For each expression, write an equivalent expression that uses only addition.
b) 4x - 7y - 5z + 6

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1. For each expression, write an equivalent expression that uses only addition.
c)

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2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.
c)

1

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.
d)

1

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.
e)

1

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.
f)

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2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.
g)

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3. Kiran write the expression
x - 10 for this number puzzle:
"Pick a number, add -2, and multiply by 5."
a) How can she convince Kiran he made a mistake?

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3b. What would be a correct expression for this number puzzle?
"Pick a number, add -2, and multiply by 5."

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4. The output from a coal power plant is shown in the table:
Is the energy output in proportion to the number of days?
If so, write an equation showing the relationship in the space provided.

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4. The output from a solar power plant is shown in the table:
Is the energy output in proportion to the number of days?
If so, write an equation showing the relationship in the space provided.

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Exit Ticket
1. Select all the expressions that are equivalent to
4 - x

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2. Use the distributive property to write an expression that is equivalent to 5( -2x - 3). You may consider using the boxes to help organize your work.

1. For each expression, write an equivalent expression that uses only addition.a) 20 - 9 + 8 - 7

1. For each expression, write an equivalent expression that uses only addition.b) 4x - 7y - 5z + 6

1. For each expression, write an equivalent expression that uses only addition.c)

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.c)

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.d)

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.e)

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.f)

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.g)

3. Kiran write the expression x - 10 for this number puzzle:"Pick a number, add -2, and multiply by 5."a) How can she convince Kiran he made a mistake?

3b. What would be a correct expression for this number puzzle?"Pick a number, add -2, and multiply by 5."

4. The output from a coal power plant is shown in the table:Is the energy output in proportion to the number of days?If so, write an equation showing the relationship in the space provided.

4. The output from a solar power plant is shown in the table:Is the energy output in proportion to the number of days?If so, write an equation showing the relationship in the space provided.

Exit Ticket1. Select all the expressions that are equivalent to 4 - x

2. Use the distributive property to write an expression that is equivalent to 5( -2x - 3). You may consider using the boxes to help organize your work.

1. For each expression, write an equivalent expression that uses only addition.
a) 20 - 9 + 8 - 7

1. For each expression, write an equivalent expression that uses only addition.
b) 4x - 7y - 5z + 6

1. For each expression, write an equivalent expression that uses only addition.
c)

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.
c)

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.
d)

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.
e)

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.
f)

2. Use the distributive property to write an expression that is equivalent to each expression. If you get stuck, consider drawing boxes to help organize your work.
g)

3. Kiran write the expression
x - 10 for this number puzzle:
"Pick a number, add -2, and multiply by 5."
a) How can she convince Kiran he made a mistake?

3b. What would be a correct expression for this number puzzle?
"Pick a number, add -2, and multiply by 5."

4. The output from a coal power plant is shown in the table:
Is the energy output in proportion to the number of days?
If so, write an equation showing the relationship in the space provided.

4. The output from a solar power plant is shown in the table:
Is the energy output in proportion to the number of days?
If so, write an equation showing the relationship in the space provided.

Exit Ticket
1. Select all the expressions that are equivalent to
4 - x