Adding 2-digit numbers
Add the ones, then the tens. Carry when you need to.
Learn with Kutty
Go one screen at a time. Press Next when you are ready. Tap 🔊 Read to me to listen.
Add the ones first, then the tens.
Look: 7 ones + 5 ones = 12 ones. 10 of them make a new ten. So 6 tens and 2 ones: 62.
✏️ Your turn!
Type your answer and press Check. Kutty will tell you if it is right.
124 + 35 = ?
246 + 38 = ?
329 + 34 = ?
! Careful!
✗Writing 15 in the ones place: 715.
✓Only one digit fits. Carry the ten: 85.
✗Forgetting the carried 1.
✓Write the small 1 above the tens so you remember.
See the whole lesson on one page
Add the ones first, then the tens.
Write tens under tens and ones under ones. Add the ones. If you get 10 or more, make a bundle of ten and move it to the tens.
Think of it like thisWhen you collect 10 loose pencils, you put a rubber band round them to make one bundle. That bundle is a ten. That is carrying!
- Carry
- Move a bundle of ten to the tens side.
Solved together
38 children are on a bus. 47 more get on. How many now?
Write them one under the other.
Ones: 8 + 7 = 15. That is 1 ten and 5 ones. Write 5. Carry the 1 ten.
8 + 7 = 15Tens: 3 + 4 + the carried 1 = 8.
Answer38 + 47 = 85 children.
Now practise it
Kanakku makes new questions on adding 2-digit numbers every time. It shows the working and gives a hint when you are stuck.