| A | B |
| When adding and subtracting you always start with the | ones place |
| The answer to an addition problem. | sum |
| The answer to a subtraction problem. | difference |
| to take apart a number to write it in a new way | regroup |
| A number close to an exact value. | estimate |
| For any number, zero plus that number is the number. | Identify Property of Addition |
| 5,364 + 482 round to hundreds | 5,400 + 500 = 5,900 |
| Sum of 212,048 and 37,251 | 249,299 |
| 612- 430 = | 182 |
| 5,364 + 482 = | 5,846 |
| The property that states that the order in which two numbers are added does not change the sum. | Commutative Property of Addition |
| The property which states that the grouping of the addends does not change the sum. | Associative Property of Addition |
| The first number is a subtraction sentence from which a second number is to be subtracted. | minuend |
| The second number is a subtraction sentence that is subtracted from a number or minuend. | subtrahend |