Fun Friday - 2/20

Subtracting

100

20a - 5a - 11a

Answer = 4a

200

Terms that contain the same variable(s) raised to the same exponent. These terms can be combined. Example: 3x + 9x or 7y + 3Y

What are like terms?

300

5x - 3x - x - 40y

Answer = 1x - 40y

400

15m - 3m - (12n - 1n - 4n)

Answer = 12m - 7n

500

40a - 40a - (144b - 2b)

Answer = 142b

Adding

100

5a + 15a + 1a + 9

Answer = 21a + 9

200

5x + 35 + 3x + x + 2

Answer = 9x + 37 

300

32 + 12t + 16t + 8

Answer = 28t + 40

400

6p + 32 + 16p + 2 + 4p

Answer = 26p + 34

500

m + 20n + 25m + 6n

Answer = 26m + 26n

Distributive Prop.

100

4 (3x + y) + 2x

Answer = 14x + 4y

200

10 (4x + 3y + 2x) 

Answer = 60x + 30y

300

2 ( 2x + 2y) + 1x + 1y

Answer = 5x + 5y

400

2 (12m + 2n) - 2n

Answer = 24m + 2n

500

5(1q + 1r) + 2q + 3r

Answer = 7q + 8r

Wildcard

100

If you have a # outside of a ( ) , what OPERATION do you do to each term inside the ( ) ?

Example: 5 (2n + 1o)

Answer: Multiply

200

When you are adding two numbers with OPPOSITE signs, what do you do?

Answer = Subtract and pick the sign of the LARGER number

300

How many different terms do you see here (think about apples vs. oranges)

4a + 4 + 20b + 5 + 10c

Answer = 3 different terms

400

5x² + 3x² + 9 + 2x = 

Answer = 8x² + 9 + 2x

500

4 (3x² + 5x) + 5x² + 2x

Answer = 17x² + 22x