Equations

Addition

100

x+13=82

69

200

32=s+9

23

300

z+1 3/4=2 2/3

11/12

400

the sum of one fifth and s equals 5

1/5+s=5, s=4 4/5

subtraction

100

b-34=126

130

200

176=z-313

489

300

7/10=x-3/5

1 3/10

400

g reduced by 12 is a total of 5

g-12=5, g=17

multiplication

100

9t=117

13

200

7,200=800s

9

300

9=3/8 y

24

400

the product of 12 and k is 108

12k=108, k=9

Division

100

w/9=3

27

200

294=x/3

882

300

f/2=5/8

1 1/4

400

t split into 12 groups has a quotient of 24

t/12=24, t=288

challenge

100

7m+8=29

3

200

13.27=t-24.45

37.72

300

1.8x=40.14

22.3

400

subtract half from a product of 2 and b to total 3.5

2b-1/2=3.5, b=2