This hard worksheet, Even and Odd Challenges, mixes computation with parity rules so second graders have to think twice. Four multiple-choice items find the sum that gives an odd result (7 + 10), confirm Jake's claim that numbers ending in 5 are odd, name the even number between 40 and 45, and predict that two odd numbers added together are always even.
Five fill-ins compute 18 + 7, find the smallest odd number greater than 40, finish the run 20, 22, 24, 26, ___, and explain why even minus even is always even, a powerful pattern that supports later work in multiplication and division.
Style:
Even & Odd Numbers
Part A: Multiple Choice
Circle the best answer for each question.
1. Which sum gives an odd number?
A) 4 + 6
B) 8 + 12
C) 7 + 10
D) 2 + 14
2. Jake says all numbers ending in 5 are odd. Is he correct?
A) No, some are even
B) Yes, he is correct
C) Only under 50
D) Only over 10
3. Which number is even and between 40 and 45?
A) 41
B) 43
C) 42
D) 45
4. Emma adds two odd numbers. Her answer will always be:
A) Odd
B) Even
C) Zero
D) Greater than 20
Part B: Fill in the Blank
Write the correct answer on each line.
1. The sum of 18 and 7 is 25, which is odd.
2. If you add 2 to any odd number, the result is always odd.
3. The smallest odd number greater than 40 is 41.
4. Between 20 and 30, the even numbers are 20, 22, 24, 26, and 28.
5. An even number minus an even number is always even.
Even & Odd Numbers
★ Part A: Multiple Choice
Circle the best answer for each question.
1. Which sum gives an odd number?
A) 4 + 6
B) 8 + 12
C) 7 + 10
D) 2 + 14
2. Jake says all numbers ending in 5 are odd. Is he correct?
A) No, some are even
B) Yes, he is correct
C) Only under 50
D) Only over 10
3. Which number is even and between 40 and 45?
A) 41
B) 43
C) 42
D) 45
4. Emma adds two odd numbers. Her answer will always be:
A) Odd
B) Even
C) Zero
D) Greater than 20
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) The sum of 18 and 7 is 25, which is odd.
2) If you add 2 to any odd number, the result is always odd.
3) The smallest odd number greater than 40 is 41.
4) Between 20 and 30, the even numbers are 20, 22, 24, 26, and 28.
5) An even number minus an even number is always even.
Ready to Practice?
Complete each section carefully.
9 Questions
12-18 minutes
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