How Well Do You Know Place Value And Rounding?
10 Questions
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In decimal number system, the value of a digit depends on its place, or position, in the number. Each place has a value of 10 times the place to its right. Take a quiz and see what you know about place value and number rounding.
Questions and Answers
- 1.The act of replacing a number by another value that is approximately equal but has a shorter, simpler or more explicit representation is?
- A.
Rounding
- B.
Fraction
- C.
Cutting
- D.
None of the above
- 2.Rounding is often done to obtain a value that is easier to report and communicate than the original, rounding can also be important to avoid misleading report of a computer number to ensure?
- A.
Accuracy
- B.
Precision
- C.
Efficiency
- D.
All of the above
- 3.It is unavoidable when reporting many computations, especially when dividing two numbers in integer or fixed-point arithmetic, what’s unavoidable
- A.
Reporting
- B.
Precision
- C.
Calculation
- D.
Rounding
- 4.Accurate rounding of transcendental mathematical functions is difficult because the number of extra digits that need to be calculated to resolve whether to round up or down cannot be known in advance, this problem is known as?
- A.
Miscalculation
- B.
Quantization
- C.
Table-Maker dilemma
- D.
None of the above
- 5.Rounding is almost unavoidable when reporting many computations and when dividing two numbers in integer or fixed-point arithmetic such as?
- A.
Square roots
- B.
Logarithms
- C.
Sines
- D.
All of the above
- 6.In a sequence of calculations, rounding errors generally accumulate, and in certain ill-conditioned cases, they make the result?
- A.
Null
- B.
Void
- C.
Meaningless
- D.
All of the above
- 7.Every mathematical expression, whether operator or operands have their symbol they are represented in, which one is for rounding?
- A.
Degree
- B.
Wavy equals
- C.
Equal
- D.
Modulo
- 8.In the decimal system, which is base 10, digits from 0 to 9, the first column left of the decimal place are the units?
- A.
Place
- B.
Column
- C.
Position
- D.
None of the above
- 9.In these order, the lines up in other of the unit, left is the tens, the next is the hundreds which one is the next?
- A.
Millions
- B.
Thousandths
- C.
Fifties
- D.
None of the above
- 10.A method of representing or encoding numbers, is distinguished from other notations for its use of the same symbol for the different order of magnitude, this method is called?
- A.
Place-vale notation
- B.
Positional notation
- C.
Roman numerals
- D.
A and B only
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