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






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






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






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






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






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






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






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






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






10. 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.






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






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






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






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






15. 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.






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






17. The symbol > is read as _________.






18. The symbol ______ means percent.






19. ______________ 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.






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






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






22. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






32. 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.






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






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






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






37. 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).






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






39. 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.






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






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






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






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






44. The symbol ≤ is read as __________ .






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






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






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






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






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






50. 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.