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






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






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






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






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






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






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






8. 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.






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






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






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






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






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






14. 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.






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






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






17. 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).






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






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






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






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






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






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






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






25. 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.






26. The symbol > is read as _________.






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






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






29. The symbol ≤ is read as __________ .






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






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






32. 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.






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






34. The symbol < is read as ________ .






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






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






37. 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.






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






39. The set of all possible outcomes is _____________.






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






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






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






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






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






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






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






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






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






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






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






Can you answer 50 questions in 15 minutes?



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