Ms. Carter, can you help me with adding two-digit numbers that need a carry?

Of course! When the ones digits add to 10 or more, you carry to the tens.

Like with 47 plus 26—how do we start?

First add the ones: 7 + 6 = 13. Write down 3 and carry 1.

So the 1 goes to the tens column?

Exactly. Now add the tens: 4 + 2 + 1 = 7. Write 7 in the tens place.

That gives 73. Is that correct?

Yes! 47 + 26 = 73, with a carry from ones to tens.

Can we try another one, like 58 + 67?

Sure. 8 + 7 = 15; write 5, carry 1; tens: 5 + 6 + 1 = 12; write 2 and carry 1 to hundreds; hundreds: 1; result 125.