Math Practice Topic: Odd or Even Theory

Description: Apply understanding of odds and evens to determine if the result of a complex calculation is odd or even.

Adaptive Learning Progression: First uses words to teach the theory, then switches to numbers to apply it.

Sample Levels (out of 8)

Select if the resulting number is odd or even

1.
even number - even number
2.
even number + odd number
3.
odd number × odd number
4.
odd number - odd number

Select if the resulting number is odd or even

1.
28161 + 49619
2.
5836 - 30022
3.
10322 - 2452
4.
25124 × 37553

Select if the resulting number is odd or even

1.
13902 - 4073 + 40051
2.
49380 + 34555 - 17016
3.
45279 - 19907 - 17950
4.
26812 × 13742 - 21688
5.
1886 - 6844 + 11752
6.
23424 + 8654 - 40962
7.
48159 × 19577 + 11264
8.
41631 × 1948 × 20034
9.
37082 × 29780 × 16984
10.
41676 × 39472 × 7293

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