Lakhs & big numbers
Place value to ten lakhs, number names and rounding.
Learn with Kutty
Go one screen at a time. Press Next when you are ready. Tap 🔊 Read to me to listen.
Rounding swaps a number for a nearby easy one.
Look: 3,47,820 is nearer to 3,50,000 than to 3,40,000.
✏️ Your turn!
Type your answer and press Check. Kutty will tell you if it is right.
1Round 6,349 to the nearest hundred.
2Round 25,500 to the nearest thousand.
3Estimate 4,890 + 3,120.
! Careful!
✗Looking at the last digit to round to thousands.
✓Look at the digit just right of the thousands.
✗Rounding 4,750 down to 4,700.
✓5 or more rounds up: 4,800.
See the whole lesson on one page
Rounding swaps a number for a nearby easy one.
Look at the digit just to the right of where you round. 5 or more: round up. Less than 5: round down. Rounded numbers make quick guesses easy.
Think of it like thisIf someone asks your age and you are 9 years and 11 months, you might say "almost 10". That is rounding.
- Estimate
- A quick answer using rounded numbers.
Solved together
48,762 tickets on Saturday and 36,415 on Sunday. About how many in all?
Round each to the nearest thousand. Look at the hundreds digit.
48,762 → 49,000 (7 is 5 or more)36,415 → 36,000 (4 is less than 5)Add the round numbers.
49,000 + 36,000 = 85,000The exact answer is 85,177. Very close!
AnswerAbout 85,000 (exactly 85,177).
Now practise it
Kanakku makes new questions on lakhs & big numbers every time. It shows the working and gives a hint when you are stuck.