Dividing by 2 is halving. Dividing by 10 asks how many tens.
Step 1: Let's Learn
Read it, or press Listen and follow the words.
Dividing by 5
35 ÷ 5 asks what times 5 makes 35. You know it is 7.
Nothing new to learn
You are using the tables you learned last lesson, read the other way.
The same three tables, read the other way
If 8 × 5 = 40 then 40 ÷ 5 = 8 and 40 ÷ 8 = 5. Dividing by 2, 5 and 10 needs no new memorising at all — it needs you to search the table you already know for the missing factor.
Dividing by 2 is halving
18 ÷ 2 = 9 is the same question as "what is half of 18". Splitting a number into tens and ones helps: half of 18 is half of 10 plus half of 8, which is 5 + 4 = 9. That method keeps working for numbers far too big to remember.
Dividing by ten
70 ÷ 10 = 7. The digit moves one column right and the zero that was holding the ones place is no longer needed. This only comes out neatly when the number ends in 0 — 75 ÷ 10 is not a whole number, which is a hint of the decimals waiting in Grade 4.
Step 2: Try It Yourself
Tap and try it out.
35
7
5
- 35 ÷ 5 = 7
Step 3: Watch an Example
One step at a time.
Watch Ana Divide by Ten
Ana is asked for 70 ÷ 10.
- Step 1
She reads it as a question about tens: how many tens make 70?
Step 4: Your Turn
Practice makes it stick.
Fair Shares
Problem 1 of 2
16 apples are shared equally between 2 people. How many each?
apples
Coins Again
Problem 2 of 2
Leo has 45 pence, all in 5p coins. How many coins?
coins
Divide by 2, 5, and 10
1 of 4
14 ÷ 2 = ?
2 of 4
30 ÷ 5 = ?
3 of 4
80 ÷ 10 = ?
4 of 4
50 ÷ 5 = ?
Step 5: Quick Check
Show what you know.
Question 1 of 2
40 ÷ 5 = ?
Question 2 of 2
What is dividing by 2 the same as?
What You Learned
- Dividing by 2 is halving.
- Dividing by 10 asks how many tens.
- Every division is answered by a fact you already know.