Author's Instructions
Read the numbers carefully.
Start adding from the ones column.
Always add from the right side first.
Addition without regrouping
Add the digits in each column.
If the total is 9 or less, write the answer under the line.
Move to the next column (tens, then hundreds).
Addition with regrouping
If the total in a column is 10 or more, regroup.
Write the ones digit under the line.
Carry the extra ten to the next column.
Add the carried number to the next column.
Addition
Author's Instructions
Read the numbers carefully.
Start adding from the ones column.
Always add from the right side first.
Addition without regrouping
Add the digits in each column.
If the total is 9 or less, write the answer under the line.
Move to the next column (tens, then hundreds).
Addition with regrouping
If the total in a column is 10 or more, regroup.
Write the ones digit under the line.
Carry the extra ten to the next column.
Add the carried number to the next column.
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MASS: Addition and Subtraction
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