CDMAFDA

Verbal expressions

100

3 less than 2

-1

200

5 combined with 9

 14

300

quotient of 30 and 5

6

400

12 times 8

 96

500

quotient of 147 and 3

49

Properties

100

a + (b+c) = (a+b)+c

associative property of addition

200

a=a

 reflexive

300

a+b = b+a 

symmetric

400

if a=b and b=c, then a=c

transitive

500

-12+12=0

inverse property of addition

1-step equations

100

x-1 = 8

x=9

200

x + 2 = 12

x = 10

300

2x = 8

x= 4

400

x/4=16

x = 4

500

x/12 = 7

x = 84

2-step equations

100

2x+1=5

2

200

4x-4=12

x=4

300

6x-13=61

x = 8

400

8x+19=51

4

500

123-4x=103

x=5

Multi-step equations

100

2(3x-4)-1=15

x=4

200

3(4x+5) +2=41

x=2

300

5(4x-6)+2=32

x=3

400

4(6x+5)-12=56

x=2

500

5(6x-7)-5=

x=50