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Short multiplication

Partition the number into ones, tens and hundreds. Multiply these by the 1-digit number separately. Make sure everything is in the right place value column.

Example 1

What is 342 脳 4?

Image gallerySkip image gallerySlide 1 of 4, Step 1 sign. 342 脳 4. Incomplete answer shows 8 in the ones column., Start by multiplying the digit in the ones by 4. 2 脳 4 = 8.
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Example 2

What is 317 脳 5?

Image gallerySkip image gallerySlide 1 of 4, Step 1 sign. 317 脳 5. Incomplete answer shows 5 in the ones column with 3 carried into the tens column., Multiply the ones by 5. 7 脳 5 = 35. Keep the 5 in the ones column and carry over the 3 into the tens.

When following the short multiplication method, always double check your working out and that each digit is in the correct place.

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Activity

Quiz

Think you know about multiplying hundreds, tens and ones by ones? Try this quiz to test your skills!

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NEW! Play Guardians: Defenders of Mathematica - the winter update
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More on Multiplying and dividing

Find out more by working through a topic