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Multiplying: 3 digits times 1 digit | Multiplication and division | Arithmetic | Khan Academy
By Khan Academy
How about this example? We're going to multiply a 3 digit number by a 1 digit number. Again, no carrying involved.
Multiplying: using an area model | Multiplication and division | Arithmetic | Khan Academy
By Khan Academy
Using graph paper we'll map out an area model to help us with a multiplication problem.
More ways to think about multiplying | Multiplication and division | 4th grade | Khan Academy
By Khan Academy
When multiplying, it can be helpful to break numbers into parts.