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Important Math Facts

Subject : math
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. An approximation of pi is 3.14 - or _______ .






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






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






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






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






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






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






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






9. Use number lines to ________ two decimals.






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






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






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






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






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






15. The symbol > is read as _________.






16. 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.






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






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






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






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






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






22. The symbol ______ means percent.






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






24. 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).






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






26. 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.






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






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






29. 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.






30. 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.






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






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






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






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






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






36. The symbol < is read as ________ .






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






38. The symbol ≤ is read as __________ .






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






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






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






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






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






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






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






46. 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.






47. ______________ 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.






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






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






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