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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 add or subtract fractions with unlike denominators - you need to change the fractions to equivalent fractions with ____________ before you find the sum or difference.






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






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






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






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






6. Use number lines to ________ two decimals.






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






8. The set of all possible outcomes is _____________.






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






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






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






12. The symbol ≤ is read as __________ .






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






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






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






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






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






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. 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).






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






37. ______________ 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.






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






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






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






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






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






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






44. The symbol < is read as ________ .






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






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






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






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






49. The symbol ≥ is read as ______________.






50. 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.