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






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






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






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






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






6. 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).






7. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






23. 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.






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






25. The symbol ≤ is read as __________ .






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






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






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






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






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






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






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






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






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






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






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






37. 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.






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






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






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






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






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






43. The symbol ≥ is read as ______________.






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






45. 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.






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






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






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






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






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