- Define and explain Halves of Numbers in your own words
- Use key terms such as Half accurately
- Apply what you have learned to new examples and questions
- Avoid the common mistakes learners make with this topic
This lesson focuses on Halves of Numbers: find half of small even numbers by sharing equally.
Find half of small even numbers by sharing equally.
Key ideas
Halves of numbers
Sharing equally between two people gives each person half, so half of 12 is 6. Finding halves is really division by 2.
Equal parts
A fraction only makes sense if the parts are exactly equal — two uneven pieces are not halves, no matter how they look.
Key term — Half: One of two equal parts of a whole. Two halves make the whole again.
Four friends share a cake equally. The cake weighs 800 g. How much does each friend get?
Four equal parts means each friend gets one quarter. Divide the whole: 800 ÷ 4 = 200. Check: 4 × 200 = 800 ✓.
Answer: 200 g each — one quarter of the cake.
- Thinking 1/4 is bigger than 1/2 The larger denominator means smaller pieces — fourths are thinner than halves.
- Calling unequal pieces halves The pieces must be exactly the same size for halves, quarters or any fraction to be correct.
Practice
9 — 18 ÷ 2 = 9.
12 — 24 ÷ 2 = 12.
1 — a quarter is 1 out of 4 equal parts.
1/2 — two parts make bigger pieces than four.
Quick check
Which of these best defines "Half"?
You eat 1/2 of a pizza and your friend eats 1/4. Who ate more?
A quarter of 20 marbles are red. How many are red?
- Halves of Numbers: find half of small even numbers by sharing equally.
- Halves of numbers: Sharing equally between two people gives each person half, so half of 12 is 6.
- Fraction: A part of a whole, written with two numbers such as 1/2.
- Watch out for: thinking 1/4 is bigger than 1/2