Term
Expression
OR
Number sentence. |
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Definition
| A mathematical phrase that combines numbers, operation signs and variables |
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Term
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Definition
| A letter or symbol that stands for one or more numbers. |
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Term
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Definition
It states that changing the order of addends does not change the sum.
a + b = b + a. |
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Term
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Definition
It states that the change in grouping of three or more addends or factors does not change their sum or product.
(2 + 3) + 5 = 2 + (3 + 5) |
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Term
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Definition
| A mathematical sentence that uses the equal sign (=) to show that two expressions are equal. |
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Term
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Definition
| When you add 0 to any anumber, the sum is that number. |
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Term
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Definition
| (y + z)* A = (y * A) + (z * A); |
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