MTH005 Ch 1 Operations with Real Numbers
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Addends with Like Signs | Add and use the sign of the addends.
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| Addends with Unlike Signs | Find the difference of the absolute values of the numbers. The sign of the sum is the same as the sign of the number with the largest absolute value.
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| Subtraction with Real Numbers | 1) Change the minus sign to a plus sign. 2) Change the subtrahend to its opposite. 3) Use the rules of addition of sign numbers to evaluate the sum.
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| Opposite of a Difference | For any real numbers a and b, -(a - b) = b - a
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| Multiplication of Sign Numbers | To multiply any two real numbers, the sign is 1) Positive if the numbers have like signs. 2) Negative if they have unlike signs.
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| Multiplying 3 or More Real Number Factors | The sign of the product is Positive if there are an even number of negative signs. The product is negative if there is an odd number of negative signs.
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| Division of Real Numbers | The quotient is 1) Positive if the divisor/denominator and dividend/numerator have like signs. 2) Negative if the divisor/denominator and dividend/numerator have unlike signs.
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| Property of Signs in Quotients | If a fraction has 1 opposite sign, the sign can be placed in the numerator, denominator, or in front of the fraction; 2 opposite signs, they can both be removed; 3 opposite signs, any 2 can be removed.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
powens
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