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






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






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






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






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






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






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






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






9. The symbol ≤ is read as __________ .






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






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






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






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






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






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






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






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






20. The symbol ≥ is read as ______________.






21. 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.






22. 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.






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






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






25. Use number lines to ________ two decimals.






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






27. The symbol > is read as _________.






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






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






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






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






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






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






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






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






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






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






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






39. 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).






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






41. ______________ 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.






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






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






44. 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.






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






46. The symbol < is read as ________ .






47. 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.






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






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






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