Column arithmetic learning hub

Follow addition, subtraction, multiplication, division, and decimal methods step by step in a workbook-style layout. Choose the page that matches the part you want to understand next.

Add & subtract Multiply Divide Decimal multiplication Decimal division
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Choose what you want to learn

Line up place values

Start here when you want the basic column skill first: matching place values and watching carries or borrowing.

Open Add & subtract

Read partial products

Next, use this when you want shifted rows, partial products, and the final addition separated clearly.

Open Multiply

Follow quotient and remainder

Then move here when you want to track quotient digits, remainders, and each bring-down step in order.

Open Divide

Put the decimal point back

After whole-number multiplication feels clear, use this to add the step where the decimal point goes back.

Open Decimal multiplication

Move the decimal point to divide

After whole-number division feels clear, use this to keep going with the decimal-point move before dividing.

Open Decimal division

Recommended order

  1. Start with Add & subtract to learn place value, carrying, and borrowing.
  2. Move to Multiply to read shifted rows and partial products.
  3. Then learn Divide to follow quotient digits, remainders, and bring-down steps.
  4. After that, try Decimal multiplication to place the decimal point back.
  5. Finish with Decimal division to move the decimal point before dividing.

For teachers and parents

FAQ

Which page should I start with?

Start with Add & subtract if you want the place-value skill first. After that, move to Multiply to see shifted rows, then to Divide to follow quotient digits and remainders in order.

Which page helps with decimal points?

Use Decimal multiplication when you want to see where the decimal point goes after multiplying. Use Decimal division when you want to see why the decimal point moves before dividing.

What is the difference between multiplication and division here?

Multiplication focuses on shifted rows, partial products, and the final addition. Whole-number division focuses on quotient digits, remainders, and each bring-down step. In the decimal versions, multiplication ends by putting the decimal point back, while division begins by moving the decimal point first.

Which page is best for teaching on a screen?

Pick the page that matches the operation you want to teach right now. Use Add & subtract for place value, Multiply for shifted rows, Divide for quotient and bring-down steps, and the decimal pages when the lesson is really about decimal-point handling.

See also