Page 25 - Math Skill - 2

Addition of 2-digit Numbers 23

Addition with Regrouping/Carry Over

Add 45 and 16.

To add 45 and 16, T O

we can use blocks. 45 4 5

16 + 1 6

T O

Add the ones. 4 5

5 ones + 6 ones

= 11 ones + 1 6

11

11 ones = 1 ten and T O
1
1 one 4 5

Carry 1 ten to the + 1 6
tens column. 1

Now, add the tens. T O
1
1 ten (carry over) 4 5

+ 4 tens + 1 ten + 1 6
= 6 tens 6 1

So, 45 + 16 = 61