medium Set 83 Form Exercise

23 = 17 + __

Show answer

Answer: 6

SubType
number-bonds
Total
23
KnownPart
17
MissingPart
6
Difficulty
normal

Number bond: 7 = ? + 6

Show answer

Answer: 1

SubType
number-bonds
Total
7
KnownPart
6
MissingPart
1
Difficulty
normal

13 = 2 + __

Show answer

Answer: 11

SubType
number-bonds
Total
13
KnownPart
2
MissingPart
11
Difficulty
normal

Complete the number bond: 47 = 33 + __

Show answer

Answer: 14

SubType
number-bonds
Total
47
KnownPart
33
MissingPart
14
Difficulty
normal

9 = 5 + __

Show answer

Answer: 4

SubType
number-bonds
Total
9
KnownPart
5
MissingPart
4
Difficulty
normal

21 = __ + 13

Show answer

Answer: 8

SubType
number-bonds
Total
21
KnownPart
13
MissingPart
8
Difficulty
normal

Complete the number bond: 34 = __ + 31

Show answer

Answer: 3

SubType
number-bonds
Total
34
KnownPart
31
MissingPart
3
Difficulty
normal

Number bond: 49 = 26 + ?

Show answer

Answer: 23

SubType
number-bonds
Total
49
KnownPart
26
MissingPart
23
Difficulty
normal