week #2
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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| a process that determines which multiple of 10,100,1,000, etc., a number is closest to | rounding
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| numbers that are easy to compute mentally | compatible numbers
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| the numbers 0,1,2,3,4, and so on | whole numbers
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| a number that is added in an addition problem | addend
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| adjusting one number of an operation to make computations easier and balancing the adjustment by changing the other number | compensation
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| addends/factors can be regrouped & the sum/product remains the same | associative property
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| the order of factors can be changed and the sum/product remains the same | commutative property
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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.
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.
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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