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






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






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






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






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






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






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






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






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






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






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






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






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






14. The symbol < is read as ________ .






15. 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).






16. 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.






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






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






19. The set of all possible outcomes is _____________.






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






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






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






23. 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.






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






25. The symbol ≥ is read as ______________.






26. 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.






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






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






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






30. Use number lines to ________ two decimals.






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






32. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






49. 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.






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







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