1-Step Equations, Positive Numbers

adding 1-step equations

10

The inverse operation of addition? 

subtraction

20

x + 20 = 92

x = 72

30

y + 43 = 120

y = 77

40

z + 36 = 116

z = 80

50

w + 53 = 148

w = 95

60

m + 68 = 172

m = 104

70

n + 91 = 245

 n = 154

subtracting 1-step equations

10

The inverse operation of subtraction.

addition

20

x - 66 = 22

x = 88

30

y - 65 = 70

y = 135

40

z - 95 = 83

z =178

50

w - 114 = 93

 w = 207

60

m - 141 = 108

m = 249

70

n - 183 = 119

n = 302

multiplying 1-step equations

10

The inverse operation of multiplication. 

division

20

6x = 36

x = 6

30

9y = 81

y = 9

40

8z = 160

z = 20

50

9w = 252

w = 28

60

10m = 320

m = 32

70

11n = 385

 n = 35

dividing 1-step equations

10

The inverse operation of division.  

 multiplication

20

n / 11 = 4

n = 44

30

m / 9 = 7

m = 63

40

z / 6 = 9

z = 54

50

x / 4 = 13

x = 52

60

y / 3 = 17

y = 51

70

w / 7 = 12

w = 84