Year 4 · Numbers to 10,000
Rounding to 10, 100 and 1,000
Round any number to the nearest 10, 100 or 1000
Lesson overview
What you'll learn in this lesson
Round any number to the nearest 10, 100 or 1000
Key learning points
- • Picture the number line
- • The digit that decides
- • Nearest 1,000
- • Why bother?
This lesson at a glance
- 20 minutes
- 19 parts to scroll through
- 4 quick checks
- No marked quiz yet
- Gentle pace: short sittings with pauses
Words to know
Scroll down — the lesson carries on below
Watch & discover
Part 1 of 19
Watch first
Rounding to 10, 100 and 1,000
Watch how ones build into tens, hundreds, thousands and beyond.
Do it for real
The practicals below use what the film shows, with a full method you can follow at home.
In a nutshell
Round any number to the nearest 10, 100 or 1000
What you already know
Part 2 of 19
Before we start
What you already know
You know the place value of each digit in a four-digit number.
Key words
Part 3 of 19
Key words
Words you'll need today
- round
- Change a number to the nearest ten, hundred or thousand.
- nearest
- The one it is closest to on the number line.
- halfway
- Exactly in the middle — we always round these up.
Learning cycle
Part 4 of 19
Learning cycle 1 of 2
Part 1 — Nearest 10 and 100
A short piece of teaching, then a check to make sure it has landed.
Explore the idea
Part 5 of 19
Learn
Picture the number line
To round 67 to the nearest 10, think of the two tens either side: 60 and 70. 67 is closer to 70, so 67 rounds to 70. Drawing a quick line with the two neighbours on it never fails, and it stops you guessing.
Explore the idea
Part 6 of 19
Learn
The digit that decides
There is a shortcut. To round to the nearest 10, look at the ones digit: 0 to 4 rounds down, 5 to 9 rounds up. To round to the nearest 100, look at the tens digit instead. So 342 rounds to 300 (the 4 says down) and 371 rounds to 400 (the 7 says up).
Quick check
Part 7 of 19
Quick check
Round 78 to the nearest 10.
Quick check
Part 8 of 19
Quick check
Round 461 to the nearest 100.
Reset break
Part 9 of 19
Pause
That's sitting 1 of 2 done
Stretch, get a drink, look out of the window. There is no timer and nothing is counting down — your place is saved, so you can come back in five minutes or tomorrow.
Learning cycle
Part 10 of 19
Learning cycle 2 of 2
Part 2 — Nearest 1,000 and real life
A short piece of teaching, then a check to make sure it has landed.
Explore the idea
Part 11 of 19
Learn
Nearest 1,000
Now look at the hundreds digit. 6,481 has 4 hundreds, so it rounds down to 6,000. 6,502 has 5 hundreds, so it rounds up to 7,000. Exactly halfway, like 6,500, always rounds up — that is the rule everyone agrees on so we all get the same answer.
Explore the idea
Part 12 of 19
Learn
Why bother?
A crowd of 4,873 gets reported as 'nearly 5,000'. A £2,190 car is 'about £2,000'. Rounding also checks your working: if you calculate 412 + 389 and get 1,801, rounding says the answer should be about 400 + 400 = 800, so you know something has gone wrong.
Quick check
Part 13 of 19
Quick check
Round 3,650 to the nearest 1,000.
Quick check
Part 14 of 19
Quick check
Which number rounds to 200 to the nearest 100?
Common mix-ups
Part 15 of 19
Common mix-ups
Things people often get wrong
- Looking at the wrong digit — for the nearest 100 you check the tens, not the ones.
- Rounding 6,500 down. Halfway always goes up.
- Forgetting the zeros: 342 to the nearest 100 is 300, not 3.
Challenge round
Part 16 of 19
Game · Sort it
Which of these are true?
Drag each card into the right column. Tap a card first if dragging is fiddly.
True
Not true
Challenge round
Part 17 of 19
Game · Fill the gaps
Finish the sentences
Choose the word that belongs in each gap.
To round 67 to the ____ 10, think of the two tens either side: 60 and 70.
Mastery quiz
Part 18 of 19
No quiz for this one
This lesson has no marked quiz attached yet.
Lesson round-up
Part 19 of 19
Lesson round-up
Ready when you are
Quiz score
Not sat
Games
Not played
Points this lesson
0
Best run
0 in a row
Luna: 0 out of 4 on the practice checks. Only if you feel up to it — one more?
Ask LunaDo the work
Your written work for this lesson
This is the part you'd do in your book at school. Pick the pieces below, write here or on paper, and photograph anything you draw or work out.
The cost of a school trip
A school is planning a trip to a wildlife park. The coach costs £480 however many people go. Entry costs £9.50 for each pupil and each adult goes free. The school says every pupil must pay the same amount, and the trip must not lose money.
If 60 pupils go, the coach works out at £8 each, so the total for each pupil is £17.50. If only 40 pupils go, the coach works out at £12 each, so the price rises to £21.50. The teacher explains that the coach is a fixed cost and the entry is a cost per person — which is why the price per pupil changes when the number changes.
The school decides to charge £20 and to use anything left over for a second trip later in the year.
Written for Good Learning Co.
Reading questions
- Work out the total cost of the trip if 50 pupils go.
- Show why the price per pupil falls when more pupils go, using numbers.
- At £20 each, how many pupils must go before the trip makes money? Show your working.
Working out
Working outDo the practice questions on paper, showing every step — not just the answer. Mark them yourself and circle anything you got wrong.
10–15 questions
Worked example, explained
WritingCopy one question out and write underneath, in words, why each step works.
1 question, 4–5 sentences
Problem in words
Working outWrite your own real-life problem that uses today's method, then solve it.
1 problem + solution
Saved as you type.
Part 1 of 19 · Watch & discover