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Notes about the homework

Notes about the homework. Two (or more) numbers will ALWAYS have a LCM. It’s only the GCF where if there are no factors in common that you say the GCF is 1.

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Notes about the homework

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  1. Notes about the homework • Two (or more) numbers will ALWAYS have a LCM. It’s only the GCF where if there are no factors in common that you say the GCF is 1. • The second way to find a LCM (multiply the numbers together and divide by their GCF) doesn’t always work when there are three or more numbers. Use the listing out multiples method instead. • Example: The GCF of 4, 6, and 8 is 2. 4×6×8 = 192 and 192÷2 = 96. However, the LCM of 4, 6, and 8 is 24. • 4: 4, 8, 12, 16, 20, 246: 6, 12, 18, 248: 8, 16, 24

  2. Translating Words into Math

  3. Key words that tell us to add

  4. Key words that tell us to subtract • Notice how for the last three, you have to switch the order when you turn it into math.

  5. Key words that tell us to multiply

  6. Key words that tell us to divide

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