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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






18. 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.






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






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






21. 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.






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






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






24. Similar figures have the same shape but different sizes. The symbol ~ means _________ .






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






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






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






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






29. 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.






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






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






32. 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.






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






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






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






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






37. The symbol ≥ is read as ______________.






38. The symbol ≤ is read as __________ .






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






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






41. The set of all possible outcomes is _____________.






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






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






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






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






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






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






48. The symbol < is read as ________ .






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






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