Decimals and Integers
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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| Integers | whole numbers and their opposites {...,-2, -1, 0, 1, 2, ...}
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| Whole Numbers | 0, 1, 2, 3, ...
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| Multiplying Integers | if the signs are the same ( - and - ) or (+ and +), the product is positive. If the signs are different (+ and -), the product is negative
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| Dividing Integers | if the signs are the same ( - and - ) or (+ and +), the product is positive. If the signs are different (+ and -), the product is negative
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| Adding Decimals | line up the decimals, attach zeroes so all numbers are written to the same place value, then add.
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| Subtracting Decimals | line up the decimals, attach zeroes so all numbers are written to the same place value, then subtract.
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| Multiplying Decimals | multiply normally, ignoring the decimal points. Then, put the decimal point in the answer - the number of decimal places in the answer is the sum of the decimal places in the factors
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| Dividing Decimals - only the dividend is a decimal | bump the decimal up to the quotient bar and divide
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| Dividing Decimals - the divisor is a decimal | move the decimal point over until the divisor is a whole number. Move the decimal point over in the dividend the same number of places and divide.
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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:
Math7
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