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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. 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).

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

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

4. A ___________is for organizing a set of data that shows the number of times each item or number appears.

5. Use number lines to ________ two decimals.

6. A ___________ is a proportion with one fraction with a denominator of 1.

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

8. A _________ has six rectangular faces. To find the surface area - find the sum of the areas of the six faces.

9. The symbol ______ means percent.

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

11. The symbol < is read as ________ .

12. 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.

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

14. To ______________ - if the denominators are unlike - write equivalent fractions with a common denominator. Subtract the fractions first - and rename if necessary. Then subtract the whole numbers. Simplify if possible.

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

16. ______________ 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.

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

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

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

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

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

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

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

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

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

26. The line or the fold is called the __________ .

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

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

29. The set of all possible outcomes is _____________.

30. ___________ is a number that can be written using an exponent. For example - 3² means three to the second power.

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

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

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

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

35. Use __________ to compare two decimals - using the order symbols.

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

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

38. The symbol ≤ is read as __________ .

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

40. An approximation of pi is 3.14 - or _______ .

41. The symbol > is read as _________.

42. The ________ of an angle is the common endpoint of the rays forming the angle.

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

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

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

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

47. _________ - _________ - and_______may be written by first writing each one as a fraction with a denominator of 100.

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

49. Make a __________ of an integer by using its placement on the number line.

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