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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. The opposite of a positive integer is a ________ .






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






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






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






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






6. The symbol ≥ is read as ______________.






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






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






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






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






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






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






13. The set of all possible outcomes is _____________.






14. 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.






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






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






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






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






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






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






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






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






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






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. The line or the fold is called the __________ .






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






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






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






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






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






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






32. 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.






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






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






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






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






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






38. Use number lines to ________ two decimals.






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






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






41. ______________ 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.






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






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






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






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






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






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






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






49. The symbol < is read as ________ .






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