Add single digit up to 7 digit numbers.
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Add single digit up to 7 digit numbers
Select the type of problem and press the "New problem" button.
Type of problem:
1 digit + 1 digit
2 digits + 1 digit
2 digits + 2 digits
3 digits + 1 digit
3 digits + 2 digits
3 digits + 3 digits
4 digits + 4 digits
5 digits + 5 digits
6 digits + 6 digits
7 digits + 7 digits
Problem # 1