Important Math Facts
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Important Math Facts
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25 Questions

1. Two angles are ___________ if the sum of their measures is 90°.

2. Both addition and multiplication are _________ . This means that order doesnft change the sum or product.

3. In a __________ - an object slides from one position to another without changing its size or shape.

4. A diagram used to show the total number of possible outcomes in a probability experiment is called a _____________.

5. Two angles are ___________ if the sum of their measures is 180°.

6. To add or subtract fractions with unlike denominators - you need to change the fractions to equivalent fractions with ____________ before you find the sum or difference.

7. To _____________ - express the mixed numbers as improper fractions - multiply - and simplify the results.

8. In a power - the number of times the base is used as a factor is the ________ . In 5³ - the exponent is 3.

9. A _________ is a randomly-selected group that is used to represent a whole population.

10. When two or more numbers are multiplied - each number is called a _________ .

11. The rules to follow when more than one operation is used are called the ___________.

12. To ____________ - replace the divisor with its reciprocal and then multiply to get your answer.

13. An _________ is a mathematical sentence that contains < - > - ≠- ≤ - or ≥ .

14. The set of all possible outcomes is _____________.

15. To add ____________ with common denominators - write the sum of the numerators over the common denominators. Then add the whole numbers.

16. Together - the x coordinate and y coordinate form an ___________.

17. Instead of writing large numbers with all the zeros - you can use _________ . For example - 4 -250 -000 -000 = 4.25 x 10⁹.

18. To express a ______ as a _______ - rewrite the percent as a fraction with a denominator of 100 - and then express the fraction as a decimal.

19. A _______ is the comparison of two numbers by division.

20. To add mixed numbers with unlike denominators - write equivalent fractions with a ___________ . Add the whole numbers and add the fractions.

21. The ________ is used to represent the ratio of distance on the map to the actual distance.

22. To _________ - write the mixed numbers as improper fractions. Replace the divisor with its reciprocal and multiply.

23. A figure that can be rotated 180° about a point so that it matches the original figure has ______ .

24. An ___________ is a combination of numbers - variables - and operations.

25. An ________ is a mathematical sentence that contains the equal sign.

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