Khan Academy on a Stick

Multiplication estimation example

Estimating the product of two, 2-digit numbers

Multi-digit multiplication

Multiplying by multiples of 10
2-digit times 1-digit number
2 digit times 1 digit example (no carrying)
3 digit times 1 digit example (no carrying)
2 digit times 1 digit example
3 digit times 1 digit example
4 digit times 1 digit example
2-digit times a 2-digit number
Example: 2-digit times 2-digit
Multiple Digit Numbers
Multiplication estimation example
Multiplication 7: Old video giving more examples

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This collection was created August 2013.