Concept 5 of 7
Making Groups: Division Again
Today's big idea
Division can also make equal groups of a set size and count how many groups.
8 counters in groups of 2 make 4 groups, so 8 ÷ 2 = 4.
How it works
👀 What's going on?
You have 12 socks and want to bundle them into pairs. How many bundles will you make? That question is division too — but told a different way.
💡 Here's the trick
Look at the items above. Instead of sharing among people, you make equal groups of a set size and count how many groups you get. 12 socks in groups of 2 makes 12 ÷ 2 = 6 pairs. Both ways of dividing use the same ÷ sign.
🪄 How to do it
- 1.Count the total number of things.
- 2.Note how big each group should be.
- 3.Count how many equal groups you can make.
✍️ Try it
- 1.How many groups of 2 are in 8?
- 2.How many groups of 5 are in 15?
8 ÷ 2 = 4 groups of 2. And 15 ÷ 5 = 3 groups of 5.
⚠️ Watch out
This is not asking how many are in each group — you already know that. It asks how many groups you can make, which is a different question.
🌟 Why this matters
Making equal groups packs eggs into boxes, seats into rows and players into teams. It shows division and multiplication are two sides of one coin.
Exam tip: Keep subtracting the group size until you reach zero, and count the groups.
Watch me solve one
Quanta solves it
“Watch how I think through one of these — then you try.”
THE PROBLEM
“How many groups of 3 can you make from 12 marbles?”
- 1
Make groups of 3
Bundle the 12 into 3s.
- 2
Divide
12 ÷ 3 = 4
- 3
Answer ✓
4 groups
Now you try one — same steps, different story 👇
See it in action
⚡ Time to play!
Division also means making equal groups. How many groups can you make?
GROUPING · ROUND 1 OF 3
Put 8 into groups of 2 — that is 8 ÷ 2
How many groups of 2 can you make?
Quick check
✅ VERIFICATION
How many groups of 3 can you make from 12 marbles?
⚡ Finish the activity above first to answer.
Keep going!
Up next: Doubles & Halves
Double 4 = 8; half of 8 = 4.