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






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






3. 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).






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






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






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






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






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






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






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






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






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






13. ______________ 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.






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






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






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






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






18. The symbol > is read as _________.






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






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






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






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






23. 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.






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






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






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






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






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






29. The symbol ______ means percent.






30. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






40. 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.






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






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






43. 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.






44. 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.






45. 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.






46. The symbol ≤ is read as __________ .






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






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






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






50. 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.