Addition and Subtraction with a Missing Number

16 + k = 20

• k = 4

• k = 5

• k = 6

• k = 7

7 + v = 12

• v = 4

• v = 5

• v = 6

• v = 7

11 + h = 20

• h = 6

• h =7

• h =8

• h =9

q + 14 = 30

• q = 15

• q =16

• q =17

• q =18

22+ c = 40

• c = 15

• c =16

• c =17

• c =18

y - 22 = 40

• y = 60

• y = 61

• y = 62

• y = 63

j - 17 = 30

• j = 27

• j = 37

• j = 47

• j = 57

55 - g = 30

• g = 85

• g = 22

• g = 20

• g = 25

d - 28 = 40

• d = 38

• d = 48

• d = 58

• d = 68

58 - s = 45

• s = 15

• s = 10

• s = 13

• s = 16