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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 used as a factor is the base. In 10³ - the ________ is 10. That is - 10³ = 10 X 10 X 10.






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






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






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






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






6. 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.






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






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






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






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






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






12. 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).






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






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






15. The symbol ______ means percent.






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






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






18. The symbol > is read as _________.






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






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






21. The symbol ≤ is read as __________ .






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






23. The symbol < is read as ________ .






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






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






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






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






28. 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.






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






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






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






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






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






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






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






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






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






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






39. Use number lines to ________ two decimals.






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






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






42. The set of all possible outcomes is _____________.






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






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






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






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






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






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






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






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