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






2. Use number lines to ________ two decimals.






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






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






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






6. The symbol ______ means percent.






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






8. 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).






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






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






11. A _________ is a randomly-selected group that is used to represent a whole population.






12. The symbol ≤ is read as __________ .






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






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






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






16. 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.






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






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






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






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






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






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






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






24. 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.






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






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






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






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






29. 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.






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






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






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






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






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






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






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






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






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






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






40. The set of all possible outcomes is _____________.






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






42. 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.






43. ______________ 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.






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






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






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






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






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






49. The symbol ≥ is read as ______________.






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







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