Picture Attached: 9 + 9 + 9 + 9 = 36 or 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 36
To find 4x9 we can stack and align the numbers by place value columns!
- Put the 6 in Ones place
- Carry the 3 to Tens place
- Answer 36!
Long addition is a process for adding numbers together:
- Stack your numbers and align the columns by place value.
- Add all numbers column by column from right to left.
- Record the sum in the answer space for each column.
- If the sum of any one column is greater than nine, carry the additional digits to the next highest column.
Hope this helps! Feel free to put it in your own words!