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Math Practice Online > free > lessons > California > 3rd grade > Multiplication By One Digit

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Here are some tips for Multiplication By One Digit, which aligns with California state standards:

Multiplication By One Digit



For this topic, you need to know your multiplication table very well.
For a review of the Fast Multiplication topic, see here.

This topic can also be called short multiplication. Short multiplication is to multiply a large number by a single digit number. You solve short multiplication problems with a series of simple multiplication problems. We multiply from right to left and carry over any products that are 10 or more to the next column.

Short multipication with a 2-digit number.


Short multipication with a 4-digit number.

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