Adding and Subtracting Whole 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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| Addition | total amount of objects together in a collection
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| Addends | The numbers that are added together to find a sum.
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| Sum | The result of adding numbers together.
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| Subtraction | The process or skill of taking one number or amount away from another.
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| Difference | The answer when subtracting two numbers.
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| Mental Math | The process of completing math problems in your head.
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| Breaking apart | Mental math method used to rewrite a number as the sum of numbers to form an easier problem.
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| Counting on | Counting up from the smaller number to find the difference of two numbers.
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| Compensation | Choosing numbers close to the numbers in a problem, and then adjusting the answer to compensate for the numbers chosen.
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| Commutative Property of Addition | Numbers can be added in any order and the sum remains the same.
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| Associative Property of Addition | Addends can be regrouped and the sum remains the same.
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| Inverse Operations | Two operations that undo each other. Addition and subtraction are inverse operations.
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| Estimate | To make an approximate or rough calculation, often based on rounding.
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| Identity Property of Addition | Any number added to zero (0) will give that number as the sum.
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| Reasonable | An answer that makes sense and can be proven.
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| Unreasonable | An answer that does NOT make sense and can't be proven.
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| Regrouping | Rearranging the formation of a group. For example: a group of 10 ones can be formed into 1 ten.
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| Whole Number | Any number between 0 and infinity that DOES NOT contain a fraction or a decimal.
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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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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:
ESASDgrade4
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