Worked example
Which is odd: 10, 12, 13 or 14?
Answer & why
Answer: 13
Pairing 13 objects leaves one object over.
Grade 2 · Math
Identify odd numbers
Find numbers that leave one object when arranged in pairs.
8 generated examples + worked example
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Question 1
Which number is odd?
- 36
- 31
- 32
- 34
A hint
Even numbers end in 0, 2, 4, 6 or 8. Odd numbers do not.
Answer & why
Answer: 31
31 is odd: grouping it in pairs leaves one over.
Question 2
Which number is odd?
- 36
- 38
- 35
- 40
A hint
Even numbers end in 0, 2, 4, 6 or 8. Odd numbers do not.
Answer & why
Answer: 35
35 is odd: grouping it in pairs leaves one over.
Question 3
Which number is odd?
- 52
- 48
- 50
- 47
A hint
Even numbers end in 0, 2, 4, 6 or 8. Odd numbers do not.
Answer & why
Answer: 47
47 is odd: grouping it in pairs leaves one over.
Question 4
Which number is odd?
- 19
- 22
- 24
- 20
A hint
Even numbers end in 0, 2, 4, 6 or 8. Odd numbers do not.
Answer & why
Answer: 19
19 is odd: grouping it in pairs leaves one over.
Question 5
Which number is odd?
- 86
- 88
- 90
- 85
A hint
Even numbers end in 0, 2, 4, 6 or 8. Odd numbers do not.
Answer & why
Answer: 85
85 is odd: grouping it in pairs leaves one over.
Question 6
Which number is odd?
- 83
- 84
- 88
- 86
A hint
Even numbers end in 0, 2, 4, 6 or 8. Odd numbers do not.
Answer & why
Answer: 83
83 is odd: grouping it in pairs leaves one over.
Question 7
Which number is odd?
- 98
- 93
- 94
- 96
A hint
Even numbers end in 0, 2, 4, 6 or 8. Odd numbers do not.
Answer & why
Answer: 93
93 is odd: grouping it in pairs leaves one over.
Question 8
Which number is odd?
- 27
- 32
- 28
- 30
A hint
Even numbers end in 0, 2, 4, 6 or 8. Odd numbers do not.
Answer & why
Answer: 27
27 is odd: grouping it in pairs leaves one over.