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## Odd or Even Theory - Sample Math Practice Problems

The math problems below can be generated by MathScore.com, a math practice program for schools and individual families. References to complexity and mode refer to the overall difficulty of the problems as they appear in the main program. In the main program, all problems are automatically graded and the difficulty adapts dynamically based on performance. Answers to these sample questions appear at the bottom of the page. This page does not grade your responses.

See some of our other supported math practice problems.

### Complexity=2, Mode=words

Select if the resulting number is odd or even

 1.   even number × even number --- odd even 2.   odd number + odd number --- odd even

### Complexity=2, Mode=numbers

Select if the resulting number is odd or even

 1.   36749 + 30741 --- odd even 2.   22997 + 43185 --- odd even

### Complexity=3, Mode=numbers

Select if the resulting number is odd or even

 1.   26700 + 11702 - 5088 --- odd even 2.   38847 + 20504 - 26807 --- odd even

### Complexity=4, Mode=numbers

Select if the resulting number is odd or even

 1.   14635 + 27199 - 29191 - 27090 --- odd even 2.   20227 + 21395 - 20485 + 29541 --- odd even

### Complexity=2, Mode=words

Select if the resulting number is odd or even

1even number × even number
2odd number + odd number

### Complexity=2, Mode=numbers

Select if the resulting number is odd or even

136749 + 30741
Solution
36749 + 30741 = odd + odd
odd + odd = even
222997 + 43185
Solution
22997 + 43185 = odd + odd
odd + odd = even

### Complexity=3, Mode=numbers

Select if the resulting number is odd or even

126700 + 11702 - 5088
Solution
26700 + 11702 - 5088 = even + even - even
even + even = even
even - even = even
238847 + 20504 - 26807
Solution
38847 + 20504 - 26807 = odd + even - odd
odd + even = odd
odd - odd = even

### Complexity=4, Mode=numbers

Select if the resulting number is odd or even

114635 + 27199 - 29191 - 27090
Solution
14635 + 27199 - 29191 - 27090 = odd + odd - odd - even
odd + odd = even
even - odd = odd
odd - even = odd