Traditional and extended multiplication are important because you need to do them at random times. So for example, when you're at a grocery store and maybe you need to multiply the prices. It would be weird just standing at the register and not knowing what traditional and extended multiplication are. So for example: 5 bananas in each bag and you're getting 30 bags, so: 30 * 5 = 150.
Another example is if you have a job, you also need to know it at random times. So for example, if you wanted to know how many workers there would be in 2 days and there were 15 workers each day, you would have to know 15 * 2 = 30.
Traditional and extended multiplication are important.
In the videos below, Caroline demonstrates how to use the traditional algorithm to multiply by one and two digit multipliers.
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