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






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






3. The symbol > is read as _________.






4. The symbol ______ means percent.






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






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






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






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






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






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






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






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






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






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






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






16. The set of all possible outcomes is _____________.






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






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






19. The symbol ≥ is read as ______________.






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






21. The _________ of an integer is the distance of the integer from zero.






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






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






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






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






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






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






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






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






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






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






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






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






34. 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.






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






36. 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.






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






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






39. 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.






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






41. 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.






42. The ___________ of a circle is equal to π times its diameter or π times twice its radius. C = π d or C = 2 π r.






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






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






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






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






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






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






49. Use number lines to ________ two decimals.






50. The symbol < is read as ________ .