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Important Math Facts

Subject : math
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Both addition and multiplication are _________ . This means that order doesnft change the sum or product.

2. A _________ is an equation that shows two ratios are equivalent.

3. The symbol ≥ is read as ______________.

4. A _______ is a comparison of two numbers with different units of measure.

5. In a power - the number used as a factor is the base. In 10³ - the ________ is 10. That is - 10³ = 10 X 10 X 10.

6. A _______ is a ratio that compares a number to 100.

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

8. The ______________ are the numbers of pieces of data that can represent the whole set of data. These common measures of central tendency are mean - median - and mode.

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

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

11. A ___________ is a transformation that turns a line or shape around a fixed point.

12. A _________ is a special kind of bar graph that shows frequency of data.

13. Prime factorization can be written using ________ . For example - 2 x 2 x 3 = 2² x 3

14. The __________ of a solid is the total area of its exterior surfaces.

15. To ___________ - multiply the numerators and then multiply the denominators. Write the product in lowest terms.

16. The symbol ≤ is read as __________ .

17. If a figure can be divided in half by a line so that the two halves match each other - the figure is __________ .

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

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

20. To __________ an algebraic expression means to substitute a value for the variables and apply the rules for order of operation.

21. Both addition and multiplication are __________ . This means that grouping addends or factors will not change the sum or product.

22. The _________ states that multiplying a sum by a number is the same as multiplying each addend by that number and then adding the two products. For example - 3(8 + 2) = (3 x 8) + (3 x 2).

23. The set of all possible outcomes is _____________.

24. ______________ are two events in which either one or the other must take place - but they cannot both happen at the same time. The sum of their probabilities is one.

25. The ____________ of a circle is always a little more than three times the diameter.

26. 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.

27. When you add or subtract _________ that have the same or like denominators - you only add or subtract the numerators. The denominator stays the same.

28. The surface area of a __________ is the sum of the areas of two circles and a rectangle.

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

30. In a__________ - an object flips over a line without changing its size or shape.

31. A _________ is a symbol - usually a letter - used to represent a number.

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

33. The set of ________ consists of the positive whole numbers - zero - and the opposites of the positive whole numbers.

34. _________ integers are the same distance from zero in opposite directions on the number line.

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

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

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

38. Use number lines to ________ two decimals.

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

40. To express a ______ as ________a - express the percent as a fraction with a denominator of 100 - then simplify.

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

42. The symbol > is read as _________.

43. The symbol < is read as ________ .

44. The _________ of a circle is twice the length of the radius.

45. The opposite of a positive integer is a ________ .

46. Similar figures have the same shape but different sizes. The symbol ~ means _________ .

47. A _____________ is a system used to condense a set of data where the greatest place value of the data forms the stem and next greatest place value forms the leaves.

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

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

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