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M ultiplication is adding equal groups. 

Golf balls are sold in packs of twelve. If Tom purchases one pack of golf balls. How many does he have?. Tom bought a pack of twelve golf balls. He went to play golf, but left the entire package at home. How many golf balls does he have with him? .

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M ultiplication is adding equal groups. 

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  1. Golf balls are sold in packs of twelve. If Tom purchases one pack of golf balls. How many does he have? Tom bought a pack of twelve golf balls. He went to play golf, but left the entire package at home. How many golf balls does he have with him?

  2. In this lesson you will solve multiplication problems by using the special properties of 0 and 1.

  3. Multiplication is adding equal groups.  3 x 6 = THREE groups of SIX objects.

  4. A common mistake is to multiply by zero and get a number other than zero. 8 x 0 = 8 0 8 x 0 = 1 0 0! 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 =

  5. 5 x 1 = 5 The IDENTITY property: Any number times one is itself. One group of five donuts

  6. 8 x 0 = Any number times zero is ZERO. No groups of eight.

  7. Golf balls are sold in packs of twelve. If Tom purchases one pack of golf balls. How many does he have? 8,150,347 x 1 = 8,150,347 1 x 12 = 12 The IDENTITY property: Any number times one is itself.

  8. Tom bought a pack of twelve golf balls. He went to play golf, but left the entire package at home. How many golf balls does he have with him? 0 x 12 = 0 Any number times zero is ZERO.

  9. In this lesson you have learned how to solve multiplication problems by using the special properties of 0 and 1.

  10. Ann puts out fifteen empty goody bags for her guests to fill. How much candy is in the goody bags right now? 15 x 0 = 0 There is no candy in the goody bags right now. Any number times zero is ZERO.

  11. Make two piles of playing cards. One pile will have either aces or jokers. You can re-label these cards “0” and “1”. The other pile should have only number cards 2 – 10. Students take turns flipping over one card from each stack at the same time. They should multiply the two numbers and say the product as quickly as possible.

  12. Have students fill in the first two rows of a multiplication chart for 0s and 1s. They should explain in writing the patterns they notice and why.

  13. What is 785 x 0? Wendy filled one backpack with her six books for school. How many books is Wendy taking to school?

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