Step 1 / 2
Make pairs
★★★Numbers that make pairs are even. Numbers with one left over are odd.
Cloud Bridge · Learn first
Example
Make pairs. Is the number even or odd?
Answer: Odd
Even and odd · Numbers & Operations
If pairs leave nothing over the number is even. If one is left over it is odd.
Numbers that make pairs are even. Numbers with one left over are odd.
This is step 1 of unit 23, “Even and odd”, in Stage 2: Numbers to 100, carrying and borrowing (ages 7–8). A round has 10 problems; 90% or better earns three stars. Everything is free with no sign-up, and your stars and XP are saved on this device.