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






2. 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).






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






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






5. ______________ 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.






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






7. The symbol < is read as ________ .






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






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






10. The symbol > is read as _________.






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






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. The symbol ______ means percent.






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






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






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






17. Use number lines to ________ two decimals.






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






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






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






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






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






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






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






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






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






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






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






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






30. 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.






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






32. 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.






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






34. The symbol ≤ is read as __________ .






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






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






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






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






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






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






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






42. 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.






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






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






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






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






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






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






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






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