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






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






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






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






5. The symbol ≤ is read as __________ .






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






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






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






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






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






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






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






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






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






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






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






17. 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).






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






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






20. The set of all possible outcomes is _____________.






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






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






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






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






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






26. 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.






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






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






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






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






31. Use number lines to ________ two decimals.






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






33. 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.






34. 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.






35. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






49. A _______ is a ratio that compares a number to 100.






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