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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 ______________ 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.






2. Use number lines to ________ two decimals.






3. The symbol ≤ is read as __________ .






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






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






6. 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).






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






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






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






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






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






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






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






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






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






16. The symbol > is read as _________.






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






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






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






20. 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.






21. The set of all possible outcomes is _____________.






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






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






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






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






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






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






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






29. 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.






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






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






32. The symbol ≥ is read as ______________.






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






34. The symbol < is read as ________ .






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






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






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






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






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






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






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






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






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






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






45. 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.






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






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






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






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






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







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