Our number system are composed of ten numbers called what? correct
answersDigits
Digits correct answersThe ten basic symbols in our numbering
system: 0,1,2,3,4,5,6,7,8, and 9. Each number is a representation
of a larger number.
What is used to describe a whole? correct answersFraction
Fraction correct answersNumbers used to describe or compare
parts of a whole.
Names of the top and bottom of a fraction? correct
answersNumerator & Denominator
Numerator correct answersThe top number of a fraction, which represents
the number of parts being considered.
Denominator correct answersThe bottom part of a fraction, which represents
how many parts in a whole.
When the numerator is greater than the denominator, the fraction has to be
converted to what? correct answersMixed Fraction
Mixed Fraction correct answersA whole number and a fraction.
When the denominator is part of a power of then it is called? correct
answersDecimal Number
Decimal Number correct answersAnother way to write a fraction or
mixed number whose denominator is a power of 10.
Five Steps when you read whole numbers or writing in words are: correct
answers1). Separate the number into groups of three digits: units, thousands,
and millions. Very large numbers may include groups of digits for billions,
trillions, and even higher groups.
2) Separate the groups with commas.
3) When writing the names of whole numbers, never use the word AND.!
4) Use hyphens in numbers less than 100 that are written as two words.
, 5). When a three digits group is made up of only zeros, do not write the
name of the group.
To read a decimal number or write it in words, use the following example
and steps: correct answersExample: ( 15.0853)
1) Begin with the whole number to the left of the decimal point. ( Fifteen)
2) Read or write and for the decimal point.
3)Read or write the number to the right of the decimal point as a
whole number. ( Eighty-three).
4) Use the name of the decimal place of the final digit ( Thousands).
Result: Fifteen and eighty-three thousandths.
Why is it important for you to know how to write decimals amd fractions and
understand the relationship between the two? correct answersThe
relationship between decimals and fractions is important for writing checks.
After writing the amount as a decimal, you must write again. More than
likely it will be in words for dollars and a fraction for the cents.
When adding and subtracting decimals numbers, What's the first &
second step? correct answersFirst, list the numbers vertically.
Second, add or subtract as you would with whole
numbers. (*May have to write zeros to fill empty
columns.)
What is the two-step process to multiply decimal numbers? correct
answers1). Mutiply the two numbers as if they were whole numbers. Ignore
the decimal points for now.
2). Add the number of decimal places in the numbers being multiped.
Start from the right and count thw same number being multiplied. Start
from the right and count the same number of decimal places in the
products and insert the decimal point.
When mutilplying with amounts of money, as when figuring tax amounts,
discounts, and so on what should you round to? correct answersThe Nearest
Tenth, Hundredth etc..
How to divide decimal numbers? correct answers1). Set up the division
problem as you would with whole numbers.
2). Shift the decimal point in the divisor so that the divisor becomes a
whole number. The divisor is the number you are divided by. Then shift
the decimal point in the dividend the same number to be divided. Write
zeros in the dividend, if necessary, in order to place the decimal point.