Term
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Definition
| the answer to an addition problem |
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Term
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Definition
| any of the numbers that are added |
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Term
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Definition
| the process of finding the total number of items when two or more groups of items are joined; the opposite operation of subtraction |
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Term
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Definition
| a set of related addition and subtraction number sentences |
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Term
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Definition
| the answer to a subtraction problem |
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Term
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Definition
| the process of finding how many are left when a number of items are taken away from a group of items; the process of finding the difference when two groups are compared; the opposite of addition |
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Term
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Definition
| opposite operations, or operations that undo each other, such as addition and subtraction or multiplication and division |
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Term
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Definition
| to find an answer by performing mathematical operations (as addition, subtraction, multiplication, and division) |
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Term
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Definition
| to find out about how many or how much |
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Term
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Definition
| replacing a number with another number that tells about how many or how much |
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Term
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Definition
| to solve a math problem in your head, not using paper and pencil or a calculator |
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