Multiplication of Whole Numbers

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Multiplication of Whole Numbers

• By Stacey Erskine

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Multiplying One-Digit s

• Multiplying each number digit by the one digit
  number.
• 534
• x 7
• ______
• ???

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One Digit Multiplication

• 534 can be broken down for the multiplication by
  7
• 4 x 7 28
• 30 x 7 210
• 500 x 7 3500
• ________________
• 3738

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Patterns in Multiplying

• 6 7 42
• 60 7 420
• 600 7 4,200
• 6,000 7 42,000
• 60 70 4,200
• 600 700 420,000
• Realizing patterns can help make multiplying
  problems simpler.

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Multiplication by a Two-Digit Number

• First multiplying each number digit by the single
  place digit.
• 534
• x 27
• ______
• ???

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Two-Digit Cont.

• First do the same as in One-Digit Multiplication.
  
• Then do the multiplication of the tenth place.
• 4 x 20 80
• 30 x 20 600
• 500 x 20 10000
• __________
• 10680

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One-Digit Multiplication

• This would be the set up of the one digit
  multiplication without using the distributive
  property.
• 2 2
• 534
• x 7
• ________
• 3738

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Two Digit Multiplication

• This would be the set up of the two digit
  multiplication without using the distributive
  property.
• 2 2
• 534
• x 27
• __________
• 1 1
• 3738
• 10680
• ___________
• 14418
• put a 0 first for the single place digit that is
  not there because it would be a 0

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Practice

• You can use this worksheet to practice
  multiplication.
• Multiplication Chart
• Here you can find information all about
  multiplication.
• Fun Facts Multiplication by 11
• Practice addition, subtraction, multiplication,
  and division by playing math baseball.

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Drill and Practice Online

• You can take time and practice drill with single,
  two-digit, and three digit numbers at this
  website.
• PRACTICE!

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Multiplying Fractions

• Return to the homepage to learn about multiplying
  fractions.
• You can also work on drill and practice of
  multiplying fractions.