easy Set 11 Form Exercise

What number + 16 = 20?

Show answer

Answer: 4

SubType
complement-of-100
Total
20
KnownAddend
16
Difficulty
normal

What number + 5 = 10?

Show answer

Answer: 5

SubType
complement-of-100
Total
10
KnownAddend
5
Difficulty
normal

__ + 1 = 10

Show answer

Answer: 9

SubType
complement-of-100
Total
10
KnownAddend
1
Difficulty
normal

What number + 19 = 20?

Show answer

Answer: 1

SubType
complement-of-100
Total
20
KnownAddend
19
Difficulty
normal

Find the complement to 100: 30 + __ = 100

Show answer

Answer: 70

SubType
complement-of-100
Total
100
KnownAddend
30
Difficulty
normal

Find the complement to 20: 4 + __ = 20

Show answer

Answer: 16

SubType
complement-of-100
Total
20
KnownAddend
4
Difficulty
normal

__ + 19 = 100

Show answer

Answer: 81

SubType
complement-of-100
Total
100
KnownAddend
19
Difficulty
normal

What number + 3 = 10?

Show answer

Answer: 7

SubType
complement-of-100
Total
10
KnownAddend
3
Difficulty
normal

Find the complement to 20: 6 + __ = 20

Show answer

Answer: 14

SubType
complement-of-100
Total
20
KnownAddend
6
Difficulty
normal

What number + 2 = 10?

Show answer

Answer: 8

SubType
complement-of-100
Total
10
KnownAddend
2
Difficulty
normal

What number + 61 = 100?

Show answer

Answer: 39

SubType
complement-of-100
Total
100
KnownAddend
61
Difficulty
normal

What number + 5 = 100?

Show answer

Answer: 95

SubType
complement-of-100
Total
100
KnownAddend
5
Difficulty
normal

Find the complement to 10: 6 + __ = 10

Show answer

Answer: 4

SubType
complement-of-100
Total
10
KnownAddend
6
Difficulty
normal

What number + 39 = 100?

Show answer

Answer: 61

SubType
complement-of-100
Total
100
KnownAddend
39
Difficulty
normal

What number + 17 = 20?

Show answer

Answer: 3

SubType
complement-of-100
Total
20
KnownAddend
17
Difficulty
normal

Find the complement to 20: 7 + __ = 20

Show answer

Answer: 13

SubType
complement-of-100
Total
20
KnownAddend
7
Difficulty
normal

__ + 99 = 100

Show answer

Answer: 1

SubType
complement-of-100
Total
100
KnownAddend
99
Difficulty
normal

Find the complement to 20: 13 + __ = 20

Show answer

Answer: 7

SubType
complement-of-100
Total
20
KnownAddend
13
Difficulty
normal

What number + 3 = 20?

Show answer

Answer: 17

SubType
complement-of-100
Total
20
KnownAddend
3
Difficulty
normal