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20 Cards in this Set
- Front
- Back
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Describe the result of adding a large positive number and a smaller negative number |
result is smaller positive number, same as ignoring the signs and subracting the smaller number |
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How do you convert a fraction into a decimal |
divide the top number by the bottom numberWhat |
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What is the key step in order to add or subtract unlike fractions |
Finding the lowest common denominator |
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How do you divide one fraction by another |
invert divisor and multiply both numerator and denominator |
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how can you convert a decimal into percent |
multiply decimal by a 100 and add a percent sign |
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how do you convert a fraction to a percent |
convert it to decimal move the decimal two place to the right and add a percent sign |
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how do you change a decimal to nearest equivalent fraction |
multiply the decimal by desired denominator, result becomes numerator of fraction |
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two different ways a ratio can be expressed |
as a fraction or a colon |
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what is a proportion |
a statement of equilaty between two or more ratio |
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what is meant by the root of a number |
A root is two or more equal smaller numbers that when multiplied equal the specified number |
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how do you find square of a number? give an example |
multiply the number times itself, example 4 squared is 4X4 =16 |
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what is a common method of making computation involving very large number or very small numbers more manageable |
convert the numbers into scientific notation by using powers of 10 |
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how is 100,000 expressed as a power of 10 |
10 to the fifth power |
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what formula is used to find the area of rectangle? |
A= L X W |
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what formula is used to find the area of a triangle |
A= 1/2 X Base X Height |
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Define Pi |
A constant that expresses the relationship between the circumference and diameter of a circle, and its approximately equal to 3.1416 |
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Describe a trapezoid |
A trapezoid is a closed four sided figure having two parallel sides and two sides that are not parallel |
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What is the formula for computating the area of a circle |
Pi r squared |
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when using the power of 10, how may 1,000,000 be defined? |
10 to the sixth power |
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how do you find the area of a circle |
Area= Pi r squared |
