easy Set 41 Form Exercise

__ + 80 = 100

Show answer

Answer: 20

SubType
complement-of-10
Total
100
KnownAddend
80
Difficulty
normal

Find the complement to 100: 42 + __ = 100

Show answer

Answer: 58

SubType
complement-of-10
Total
100
KnownAddend
42
Difficulty
normal

Find the complement to 20: 13 + __ = 20

Show answer

Answer: 7

SubType
complement-of-10
Total
20
KnownAddend
13
Difficulty
normal

What number + 12 = 20?

Show answer

Answer: 8

SubType
complement-of-10
Total
20
KnownAddend
12
Difficulty
normal

__ + 10 = 20

Show answer

Answer: 10

SubType
complement-of-10
Total
20
KnownAddend
10
Difficulty
normal

__ + 18 = 100

Show answer

Answer: 82

SubType
complement-of-10
Total
100
KnownAddend
18
Difficulty
normal

Find the complement to 100: 41 + __ = 100

Show answer

Answer: 59

SubType
complement-of-10
Total
100
KnownAddend
41
Difficulty
normal

Find the complement to 10: 4 + __ = 10

Show answer

Answer: 6

SubType
complement-of-10
Total
10
KnownAddend
4
Difficulty
normal

Find the complement to 10: 2 + __ = 10

Show answer

Answer: 8

SubType
complement-of-10
Total
10
KnownAddend
2
Difficulty
normal

__ + 28 = 100

Show answer

Answer: 72

SubType
complement-of-10
Total
100
KnownAddend
28
Difficulty
normal

__ + 7 = 10

Show answer

Answer: 3

SubType
complement-of-10
Total
10
KnownAddend
7
Difficulty
normal

What number + 78 = 100?

Show answer

Answer: 22

SubType
complement-of-10
Total
100
KnownAddend
78
Difficulty
normal

Find the complement to 10: 5 + __ = 10

Show answer

Answer: 5

SubType
complement-of-10
Total
10
KnownAddend
5
Difficulty
normal

What number + 3 = 20?

Show answer

Answer: 17

SubType
complement-of-10
Total
20
KnownAddend
3
Difficulty
normal

Find the complement to 100: 20 + __ = 100

Show answer

Answer: 80

SubType
complement-of-10
Total
100
KnownAddend
20
Difficulty
normal

What number + 6 = 10?

Show answer

Answer: 4

SubType
complement-of-10
Total
10
KnownAddend
6
Difficulty
normal

What number + 72 = 100?

Show answer

Answer: 28

SubType
complement-of-10
Total
100
KnownAddend
72
Difficulty
normal

__ + 4 = 10

Show answer

Answer: 6

SubType
complement-of-10
Total
10
KnownAddend
4
Difficulty
normal

What number + 47 = 100?

Show answer

Answer: 53

SubType
complement-of-10
Total
100
KnownAddend
47
Difficulty
normal