Add down the first column = 5
then the next = 8 therefore 58 (easy ay!)
|
1 2 3 4 5 6 |
45 13 ___ 58 |
|
1 2 3 4 5 6 |
23 46 ___ 69 |
Same with 3 numbers!
|
1 2 3 4 5 6 |
345 234 ___ 579 |
And here you say 9+1=10 and write it, then the next number so you are half way through the number already….
|
1 2 3 4 5 6 |
985 111 ___ 1096 |
