Dividing by 2: half of 22 to 30.
Division to 30
Division to 30 practice, from 25 ÷ 5 to 28 ÷ 4 = 7 and 270 ÷ 9 = 30: halving 22 to 30 in two steps, then division facts from many tables, up to hundreds.
Your child can start here once they can divide up to 20 and multiply up to 30. For 21 ÷ 3 a child looks for the nearest fact they know, 6 × 3 = 18, and adds one more three, which only works when those facts are there to lean on.
Usually taught in Year 3 in England and Wales, around ages 7 to 8. Every child goes at their own pace; this is a guide, not a requirement.
The first of 8 exercises in this topic. See them all
What it looks like for your child
With one exercise from this topic as the example: Half.
1
2
3
4
How it fits together
The arrows point to what can be done next. Whatever sits inside a box belongs to it.
Division
Can come next
first this, then that belongs to
Halving backwards is doubling: ? → 13, so 13 + 13.
Dividing is the table backwards: 24 ÷ 4 — what times 4 makes 24?
The same sums, but a different number missing each time: the answer, the divisor, or the number being divided.
Against the clock: how many can your child do in sixty seconds?
The same sums to 30, with zeros on the end: if you know 8 ÷ 2 = 4, you also know 80 ÷ 20 = 4, 800 ÷ 200 = 4 and 800 ÷ 2 = 400.
Which two numbers give this result? Tap them in the right order.
A long round of 30 mixed sums to finish.
- Times and divide — on the Multiplication to 30 page
- Times and divide: big round — on the Multiplication to 30 page
- Quick: times and divide — on the Multiplication to 30 page
Why it matters
Half of 26 or 28 already takes two steps: first the ten, then the rest. This teaches your child that division, like multiplication, can be done in pieces. Every bigger division sum still to come rests on that idea.
Division sums up to 30 also appear from all sorts of times tables, such as 21 ÷ 7 and 24 ÷ 6. A child who solves these easily finds that every table they know does double duty: for multiplying and for dividing.
How to approach it
Halve in two bites. For 28, half of 20 is ten and half of 8 is four, making 14. Write the bites down side by side until your child can do it without paper.
If a division sum doesn't come straight away, look for the nearest multiplication your child does know. For 21 ÷ 3 that might be 6 × 3 = 18: one more three is needed, so the answer is 7.
When is it secure?
All 10 right in one round, and no more than 30 seconds altogether. Around 3 seconds a sum shows your child is no longer counting.