goal 1 ppt number properties 4th grade
TRANSCRIPT
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NUMBER SYSTEMPROPERTIES OF NUMBERS
Odd and Even numbers and
Negative and Positive numbers Round and Compare numbers
Sequences or Patterns in a set of numbers
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VOCABULARY
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If that digit is less than 5, do not change the "rounding digit" but
change all digits to the right of the "rounding digit" to zero.
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Operation Result
Example(red is odd, blue is
even)Even + Even Even 2 + 4 = 6
Even + Odd Odd 6 + 3 = 9
Odd + Even Odd 5 + 12 = 17
Odd + Odd Even 3 + 5 = 8
Adding and SubtractingWhen you add (or subtract) odd or even numbers the results are:(The same thing happens if you subtract instead
of adding)
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MultiplyingWhen you multiply odd or even numbers the results are always:
Operation ResultExample
(red is odd, blue is even)
Even × Even Even 4 × 8 = 32
Even × Odd Even 4 × 7 = 28
Odd × Even Even 5 × 8 = 40
Odd × Odd Odd 5 × 7 = 35