29
Even and odd numbers
Textbook Part 1, pp. 60–61
GoalTell even numbers from odd numbers.
New words
even number · juft sonodd number · toq sonto split into pairs · juftlarga bo‘lmoq
Explanation
If you put objects into pairs and none is left over, the number is even. If one is left over, it is odd. 0, 2, 4, 6, 8, 10 are even. 1, 3, 5, 7, 9 are odd. On a street, the houses on one side have even numbers and on the other side odd numbers.
Worked examples
🧤🧤 🧤🧤 🧤🧤 → 6 is even (all paired).
👟👟 👟👟 👟 → 5 is odd (one has no partner).
Class activity
Children stand in pairs. Did everyone get a partner? Is the number of children in the class even or odd?
Practice
1
Is 7 even or odd?
Odd
2
Pick out the even numbers: 3, 4, 8, 9, 10
4, 8, 10
3
A basketball team has 5 players. Two teams are on court. How many players?
10
4
Aziz read a book from page 2 to page 10. Write the odd page numbers.
3, 5, 7, 9