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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 line or the fold is called the __________ .






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






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






4. The symbol ≥ is read as ______________.






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






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






7. Use number lines to ________ two decimals.






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






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






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






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






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






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






14. 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).






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






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






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






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






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






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






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






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






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






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






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






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






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






28. 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.






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






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






31. The symbol ≤ is read as __________ .






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






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






35. The symbol < is read as ________ .






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






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






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






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






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






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






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






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






44. 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.






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






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






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






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






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






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