Numbers and Decimals

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Column Addition and Subtraction

Numbers and Decimals Column Addition and Subtraction

🎬 Video Tutorial

  • (0:01) Column Addition and Column Subtraction: For large numbers, align digits vertically by place value, and start adding or subtracting from the rightmost column.
  • (0:50) Carrying Over in Addition: When the sum in a column is more than one digit (e.g., 10 or 12), carry over the “1” to the next column.
  • (2:06) Borrowing in Subtraction: When the top digit is smaller than the bottom digit in a column, borrow “1” from the next column.

📂 Revision Cards

Column addition for 3425 + 782, showing how to align the numbers vertically. Start addition from the right, and carry over for sums over ten.
1) Column Addition and Carrying Over
Column addition for 3425 + 782, showing how to align the numbers vertically. Start addition from the right, and carry over for sums over ten.
2) Column Subtraction and Borrowing

🍪 Quiz

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