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






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






3. 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).






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






5. The set of all possible outcomes is _____________.






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






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






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






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






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






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






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






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






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






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






16. Use number lines to ________ two decimals.






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






18. 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.






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






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






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






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






23. The symbol < is read as ________ .






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






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






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






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






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






29. The symbol ______ means percent.






30. 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.






31. ______________ 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






45. 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.






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






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






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






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






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