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






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






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






4. The symbol ≤ is read as __________ .






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






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






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






8. The symbol < is read as ________ .






9. 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.






10. Use number lines to ________ two decimals.






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






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






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






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






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






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






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






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






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






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






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






22. The symbol > is read as _________.






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






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






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






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






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






28. ______________ 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.






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






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






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






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






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






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






35. 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.






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






37. The symbol ≥ is read as ______________.






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






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






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






41. The set of all possible outcomes is _____________.






42. 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.






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






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






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






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






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






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






49. 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.






50. 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).