Directions: Identify the number property used in each problem. You are not solving the problems, just naming the properties.

Note: the * sign means "multiply"

1) 3+2 = 2+3

2) a * h = h * a

3) (2+7)+4 = (7+4)+2

4) (g+j)/3 = (g/3)+(j/3)

5) 9+6 = 6+9

6) f(x-y) = f*x-f*y

7) 4(3-2) = (4*3)-(4*2)

8) t * (r*s) = (s*t) * r

9) 8(6+2) = (8*6)+(8*2)

10) 7+5 = 5+7

11) (6+4)+3 = 6+(4+3)

12) 8+7 = 7+8

13) 4(9-3) = (4*9)-(4*3)

14) k+l = l+k

15) 3(6 * 2) = (3 * 6)2

16) 5(7+2) = (5 * 7)+(5 * 2)

17) 8*3 = 3*8

18) (f+r) * t = (f*t)+(r*t)

19) 6(5-4) = (6*5)-(6*4)

20) (w+q)m = w * m + q * m