Whole Numbers
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PRACTICE: ANSWER THE FOLLOWING QUESTIONS.

1.) For the number 2768, what does the 2 mean? Write your answer in words form.
1 point
2.) For the number 6,127,459, what does the 1 mean? Write in word form.  
1 point
3.) A Decimal Number contains a Decimal Point. 
Find the Sum.

Kate had $ 368.29. Her mother gave her $ 253.46 and her sister gave her $ 57.39. How much money does she has now?  
1 point
4.) A mixture is obtained by mixing two products A and B respectively. 
Product A weighs 234.56 grams and the mixture weighs 988.76 grams.
How much does Product B weigh? 
1 point

5.) The bookstore is having a sale on bookmarks. Each bookmark is on sale for $0.84. Each student in Ms. Duke's class decides to buy a bookmark. There are 23 students in Ms. Duke's class. How much will the class spend on bookmarks at the bookstore?   

1 point
6.)  Catherine split rope that was 249.4 inches into 4 equal parts. What is the length of each part?  
1 point
Number Types: 

"natural" numbers: 1, 2, 3, 4, 5, 6

"whole" numbers, which are the natural numbers together with zero: 0, 1, 2, 3, 4, 5, 6

"integers", which are zero, the natural numbers, and the negatives of the naturals: −6, −5, −4, −3, −2, −1, 0, 1, 2, 3, 4, 5, 6

"rational" numbers, Any number that can be rewritten as a simple fraction

"irrationals" number, is a type of real number which cannot be represented as a simple fraction. It cannot be expressed in the form of a ratio. If N is irrational, then N is not equal to p/q where p and q are integers and q is not equal to 0. Example: √2, √3, √5, √11, √21, π(Pi) are all irrational.  (that is, they cannot be written as fractions)

7.) True or False: An integer is also a rational number.

1 point
8.)  True or False: A irrational numbers  cannot be written as fractions.
1 point
Estimation:  Rounding Whole Numbers:
 An estimate is an answer to a problem that is close to the solution, but not necessarily exact.
Rounding up if the number you are rounding is followed by 5, 6, 7, 8, 9
Rounding down if the number you are rounding is followed by 0, 1, 2, 3, or 4

9.) In three months, a freelance graphic artist earns $1,290 for illustrating comic books, $2,612 for designing logos, and $4,175  for designing web sites.
Estimate how much she earned in total by first rounding each number to the nearest hundred.
1 point
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