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






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






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






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






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






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






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






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






9. 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).






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






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






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






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






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






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






16. 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.






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






18. The symbol ≥ is read as ______________.






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






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






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






22. The symbol > is read as _________.






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






24. Use number lines to ________ two decimals.






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






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






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






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






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






30. 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.






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






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






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






34. The set of all possible outcomes is _____________.






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






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






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






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






39. 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.






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






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






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






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






44. The symbol ≤ is read as __________ .






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






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






47. The symbol < is read as ________ .






48. 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.






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






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