Topic 3 Re-Learn

Find and explain the error.    
 5 - 3 + 2
     5 - 5
        0

• There is no error.
• Addition was done first and you should have subtracted first
• There is a subtraction error

Which is an example of Commutative Property of Addition?

• 7 + (6+3) = 7 + (3+6)
• 3x4 = 4x3
• 7 + 3 = 13 + 7
• 2 + (3 + 4) = (2 + 3) +4

Simplify the Expression: 
x + x + y + x + y + x

• 4x + 2y
• 4 + 2
• 4x - 2y
• 6xy

Which is an example of Commutative Property of Addition?

• 7 + (6+3) = 7 + (3+6)
• 3x4 = 4x3
• 7 + 3 = 13 + 7
• 2 + (3 + 4) = (2 + 3) +4

Simplify the Expression: 
x + x + y + x + y + x

• 4x + 2y
• 4 + 2
• 4x - 2y
• 6xy

Simplify the Expression: 5(x + 2) + 2x

• 7x + 2
• 7x + 10
• 5x + 4
• 7x + 7

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

5(0) = 0

• Multiplicative Property of Zero
• Addition Property of Addition
• HBO
• COW

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x