**4 Digit Addition with Regrouping – Question 1**

Add the following:

**Explanation**

Adding the digits at ones place,

5 + 6 = 11

Since the number is more than 9, we carry over 1 to the tens place,

Adding the digits at tens place and the carry of 1

7 + 5 + 1 = 13

Since the number is more than 9, we carry over 1 to the hundreds place,

Adding the digits at hundreds place and the carry of 1

1 + 4 + 5 = 10

Since the number is more than 9, we carry over 1 to the thousands place,

Adding the digits at thousands place and the carry of 1

3 + 4 + 1 = 8

Hence, the sum of the given numbers is 8031

**4 Digit Addition with Regrouping – Question 2**

Add the following:

**Explanation**

Adding the digits at ones place,

9 + 8 = 17

Since the number is more than 9, we carry over 1 to the tens place,

Adding the digits at tens place and the carry of 1

5 + 6 + 1 = 12

Since the number is more than 9, we carry over 1 to the hundreds place,

Adding the digits at hundreds place and the carry of 1

9 + 5 + 1 = 15

Since the number is more than 9, we carry over 1 to the thousands place,

Adding the digits at thousands place and the carry of 1

8 + 9 + 1 = 18

Hence, the sum of the given numbers is 18527