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contains only number operations
example 28+23 |
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may contain nummbers,operation,and 1 or more variables
t-4 |
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changing the order of addeds or factors does not change the sum or product.
ex.5+8=8+5 |
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changing the grouping of factors does not change the sum or product
ex.(7+4)+2=7+(4+2) |
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| addition property of zero |
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sum of any number is any number and zero
ex.5+0=5 |
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| multiplication property of zero and one |
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| the product of any number and zero is zero ex.8*0=0 |
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| multiplication property of one |
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| any number and 1 is that number |
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| substituting a number for each variable to solve an algebraic expression. |
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| expressions with the same value |
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| is an identity used to simplify an equation with parentheses. In general, a(b + c) = a×b + a×c |
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| A=bxh (Area = base x heighth |
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| A=bh/2 (Area = base x height divided by 2) |
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| less than - decrease - deduct - fewer ifference |
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