Sixth Grade Chapter 6

Addition Equations

100

x+3=5

2

200

m+5=18

13

300

6.8+r=12

5.2

400

k+1 1/3=6 2/3

5 1/3

500

n+2 2/5=6 7/10

4 3/10

Subtraction Equations

100

x-2=9

11

200

r-12=20

32

300

m-3.8=5.2

9

400

n-1/2=3.5

4

500

k-6 1/3=8 5/6

15 1/6

Vocabulary

100

numbers, variables, operation symbols, and an equal sign

equation

200

numbers, variables, and operation symbols

expression

300

a letter that takes the place of an unknown number

variable

400

out of 100

percent

500

numerator/denominator

fraction

Expressions

100

9 less than a number b

b - 9

200

a number k increased by 10

k + 10

300

the sum of a number w and 2 1/2

w + 2 1/2

400

a number y decreased by 8

y - 8

500

9.5 less than a number a

a - 9.5

Equations

100

The product of 9 and a number b is 36.

9b = 36

200

11 3/4 is the quotient of a number y and 6 1/4

11 3/4= y divided by 6 1/4

300

a number w divided by 6 is 5

w/6=5

400

5 is 1/4 of a number c

5=1/4c

500

the sum of a number x and 4 is 12

x+4=12