3b. What would be a correct expression for this number puzzle?
"Pick a number, add -2, and multiply by 5."
1
1
1
1
Question 14
14.
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.
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:
Question 1
1.
1. For each expression, write an equivalent expression that uses only addition.
a) 20 - 9 + 8 - 7
Question 2
2.
1. For each expression, write an equivalent expression that uses only addition.
b) 4x - 7y - 5z + 6
Question 3
3.
1. For each expression, write an equivalent expression that uses only addition.
c)
Question 4
4.
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)
Question 5
5.
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)
Question 6
6.
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)
Question 7
7.
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)
Question 8
8.
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)
Question 11
11.
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.
Question 12
12.
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.
Question 13
13.
Exit Ticket
1. Select all the expressions that are equivalent to
