In this worksheet, we will practice deciding if a number up to 20 is odd or even by seeing if we can make two equal groups without one left over.

**Q4: **

There are the same number of squares in each of these two circles, and one more square is outside the circles.

Is the total number of squares even or odd?

- A odd
- B even

**Q5: **

Sherif bought a pack of 15 stickers. He already had 3 of them, so he gave them to his friend. Does he have an odd or even number of stickers left?

- A An odd number, because the digit 1 in 12 is odd.
- B An odd number, because 3 is odd.
- C An even number, because the digit 8 in 18 is even.
- D An even number, because 12 things can be put into two equal groups.
- EAn odd number, because they cannot be put into two equal groups.

**Q6: **

A number is **even** if it can be split into **two** groups of **equal** size.

These 6 squares can be split into two groups of 3 squares. So, 6 is even.

Which of the following numbers is even?

- A
- B
- C
- D
- E

**Q7: **

A number is **even** if we can split it into **groups of two** with nothing left over.

These 8 squares can be split into 4 groups of 2 squares. So, 8 is even.

Which of the following numbers is even?

- A
- B
- C
- D

**Q8: **

A number is **odd** if it **cannot** be split into two groups of equal size.

These 7 squares can be split into two groups of 3 with 1 left over. So, 7 is odd.

Which of the following numbers is odd?

- A
- B
- C
- D
- E

**Q9: **

Here is a group of 6 people.

Can we split them into two groups with the **same number** of people in each group?

- A yes
- B no

**Q10: **

Here is a group of 7 people.

Can we split them into two groups with the **same number** of people in each group?

- A no
- B yes

**Q11: **

Is 13 even or odd?

- A odd
- B even