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Math Chapter1 Vocab

1. Variable A letter that stands for a number
2. Order of operations A set of rules we use in math to determine which operations are performed in which order PEMDAS Parenthesis Exponent Multiply/Divide Add/Subtract
3. Equation A mathematical sentence that has an equal sign
4. Estimate To find a number that is close to an exact answer
5. Round To give an approximation of a number to the nearest one, ten, hundred, thousand and so on…
6. Exponent The number that tells how many times you multiply a number by itself
7. Base The number that is multiplied by itself
8. Exponential form A way of writing repeated multiplication
9. Squared A number that is multiplied by itself 2 times
10. Cubed A number that is multiplied by itself 3 times
11. Inverse operations Operations that “undo" each other such as addition and subtraction or multiplication and division
12. Expanded form A number written as the sum of the place values
13. Associative property A property that states the way a numbers are grouped in addition Hint: (parenthesis)
14. Commutative property The property that states that the order of the addends or factors does not matter
16. Multiplication property of zero The property that says when you multiply any number by zero, the answer is zero
17. Property of equality Doing the same thing to each side of the equation keeps it balanced and equal
18. Identity property of addition The sum of any number and zero is that number 2 + 0 = 2
19. Identity property of multiplication The product of any number and one is that number 5 x 1 = 5
20. Evaluate Solve the problem!
21. Compatible numbers Numbers that are easy to compute in your head
Created by: leapforward