1. 4th Grade Operations & Algebraic Thinking CCS: 4.0 A & Q
Who Wants To Be A
Mathematic Magician!
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4th Grade Operations & Algebraic Thinking
CCS: 4.0 A & Q

2. Rounding whole numbers
Rounding a whole number means reducing the digits in a number while trying to keep its value similar (Mathisfun.com, n.d.).
Decide which is the last digit to keep
Leave it in the same of the next digit is less then 5 (rounding down)
Increase it by 1 (one) if the next digit is 5 or more (rounding up)
Example:
43 rounded to the nearest tenth is 40
180 rounded to the nearest hundredth is 200
Let’s practice

3. 1. What is 6,479,831 rounded to the nearest hundredth thousand?
B. 6,500,000
C. 6,550,000
D. 6,000,000

4. GREAT JOB!
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5. Sorry, that is incorrect.
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6. Sequence or number patterns
A sequence is a list of numbers or objects in a special order (Mathisfun.com, n.d.).
Example:
2, 4, 6, 8 is a sequence increasing by two
is a object pattern
Let’s practice

7. Review the following sequence: 1, 2, 4, ___, 16, 32
What number is missing in this sequence?
A. 5
B. 10
C. 8
D. 15

8. GREAT JOB!
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9. Sorry, that is incorrect.
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10. A fraction is a part of a whole.
FRACTIONS
A fraction is a part of a whole.
Let’s watch a video

11. Adding Fractions
Let’s practice

12. What is the answer: =
A. 1/3
B. 3/6
C. 5/6
D. 1

13. GREAT JOB!
Thank you for playing!
The End

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15. References
Animation Library. (n.d.). Retrieved February 12, 2015, from
Grade 4 » Operations & Algebraic Thinking. (n.d.). Retrieved February 12, 2015, from
Math is Fun - Maths Resources. (n.d.). Retrieved February 12, 2015, from
Smileys » Applause Smileys. (n.d.). Retrieved February 12, 2015, from