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






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






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






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






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






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






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. The line or the fold is called the __________ .






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






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






12. 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.






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






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






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






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






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






18. The symbol < is read as ________ .






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






20. 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).






21. The symbol > is read as _________.






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






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






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






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






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






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






28. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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 an equation that shows two ratios are equivalent.






46. ______________ 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.






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






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






49. 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.






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