Add 6-digit and 5-digit numbers with regrouping - practice worksheet from SplashLearn.

Here are the solutions for the addition problems. I have worked through each one carefully, adding from right to left and regrouping (carrying over) when the sum in a column was 10 or more.

1. $811,098 + 51,679$
* Ones: $8 + 9 = 17$ (write 7, carry 1)
* Tens: $9 + 7 + 1 = 17$ (write 7, carry 1)
* Hundreds: $0 + 6 + 1 = 7$
* Thousands: $1 + 1 = 2$
* Ten-thousands: $1 + 5 = 6$
* Hundred-thousands: $8$
* Result: $862,777$

2. $201,248 + 28,565$
* Ones: $8 + 5 = 13$ (write 3, carry 1)
* Tens: $4 + 6 + 1 = 11$ (write 1, carry 1)
* Hundreds: $2 + 5 + 1 = 8$
* Thousands: $1 + 8 = 9$
* Ten-thousands: $0 + 2 = 2$
* Hundred-thousands: $2$
* Result: $229,813$

3. $531,567 + 14,447$
* Ones: $7 + 7 = 14$ (write 4, carry 1)
* Tens: $6 + 4 + 1 = 11$ (write 1, carry 1)
* Hundreds: $5 + 4 + 1 = 10$ (write 0, carry 1)
* Thousands: $1 + 4 + 1 = 6$
* Ten-thousands: $3 + 1 = 4$
* Hundred-thousands: $5$
* Result: $546,014$

4. $811,395 + 52,797$
* Ones: $5 + 7 = 12$ (write 2, carry 1)
* Tens: $9 + 9 + 1 = 19$ (write 9, carry 1)
* Hundreds: $3 + 7 + 1 = 11$ (write 1, carry 1)
* Thousands: $1 + 2 + 1 = 4$
* Ten-thousands: $1 + 5 = 6$
* Hundred-thousands: $8$
* Result: $864,192$

5. $369,467 + 29,555$
* Ones: $7 + 5 = 12$ (write 2, carry 1)
* Tens: $6 + 5 + 1 = 12$ (write 2, carry 1)
* Hundreds: $4 + 5 + 1 = 10$ (write 0, carry 1)
* Thousands: $9 + 9 + 1 = 19$ (write 9, carry 1)
* Ten-thousands: $6 + 2 + 1 = 9$
* Hundred-thousands: $3$
* Result: $399,022$

6. $311,466 + 66,794$
* Ones: $6 + 4 = 10$ (write 0, carry 1)
* Tens: $6 + 9 + 1 = 16$ (write 6, carry 1)
* Hundreds: $4 + 7 + 1 = 12$ (write 2, carry 1)
* Thousands: $1 + 6 + 1 = 8$
* Ten-thousands: $1 + 6 = 7$
* Hundred-thousands: $3$
* Result: $378,260$

7. $846,195 + 39,708$
* Ones: $5 + 8 = 13$ (write 3, carry 1)
* Tens: $9 + 0 + 1 = 10$ (write 0, carry 1)
* Hundreds: $1 + 7 + 1 = 9$
* Thousands: $6 + 9 = 15$ (write 5, carry 1)
* Ten-thousands: $4 + 3 + 1 = 8$
* Hundred-thousands: $8$
* Result: $885,903$

8. $127,355 + 18,399$
* Ones: $5 + 9 = 14$ (write 4, carry 1)
* Tens: $5 + 9 + 1 = 15$ (write 5, carry 1)
* Hundreds: $3 + 3 + 1 = 7$
* Thousands: $7 + 8 = 15$ (write 5, carry 1)
* Ten-thousands: $2 + 1 + 1 = 4$
* Hundred-thousands: $1$
* Result: $145,754$

Final Answer:
1. 862,777
2. 229,813
3. 546,014
4. 864,192
5. 399,022
6. 378,260
7. 885,903
8. 145,754