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Multiplying Multi-Digit Whole Numbers
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Multiplying Multi-Digit Whole Numbers
Definitions: Factors - Are the individual numbers that are multiplied together. Product - Is the answer when two or more numbers are multiplied together. 12 x 9 108 Factors Product
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Multiplying Multi-Digit Whole Numbers
Example 1: 23 x 13 69 299 Multiply the 3 in “13” by each digit in 23. Put a “0” in the ones place and multiply the 1 in “13” by each digit in 23. Add all of the partial products to get your final answer.
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Multiplying Multi-Digit Whole Numbers
Example 2: 993 x 68 7944 67,524 Tip: When multiplying, place the factor with more digits on the top (and the one with less digits on the bottom). Multiply the 8 in “68” by each digit in 993. Put a “0” in the ones place and multiply the 6 in “68” by each digit in 993. Add all of the partial products to get your final answer.
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Multiplying Multi-Digit Whole Numbers
Example 3: 712 x 564 2848 42720 401568 Multiply the 4 in “564” by each digit in 712. Put a “0” in the ones place and multiply the 6 in “564” by each digit in 712. Put a “0” in the ones place and in the tens place and multiply the 5 in “564” by each digit in 712 . , Add all of the partial products to get your final answer.
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Multiplying Multi-Digit Whole Numbers
Try these: 1.) ) ) x x x Challenge: 4.) ) 2,213 x x 639
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Multiplying Multi-Digit Whole Numbers
Real-Life Application Try this one: Nalini makes $663 per week. If she works 49 weeks this year, how much will she make for the entire year? Show all work.
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