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25 means 2 longs - PowerPoint PPT Presentation

Whole numbers and numeration

Whole numbers and numeration. Math 123 September 17-19, 2008. Number vs. numeral. A number is an idea that represents a quantity. A numeral is a symbol representing the number. Children need to learn that whether they count 3 fish or 3 cookies, the quantity in both cases is still 3.

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303 views • 19 slides

Whole numbers and numeration

Whole numbers and numeration. Math 123. Manipulatives. I am going to let you play with base blocks. Each group will get a different base to work with, but in any case, the names for the blocks in front of you are: Unit Long Flat Block

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330 views • 19 slides

Whole numbers and numeration

Whole numbers and numeration. Math 123. Base 6. Try to transfer what you just learned to base 6. Learn how to count in this base. What comes after 25 6 , 555 6 , 1235 6 ? What comes before 40 6 , 300 6 , 12340 6 ? Use blocks. Properties of ancient numeration systems.

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257 views • 15 slides

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25 means 2 longs - PowerPoint PPT Presentation

Whole numbers and numeration

Whole numbers and numeration

Whole numbers and numeration