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






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






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






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






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






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






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






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






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






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






11. Use number lines to ________ two decimals.






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






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






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






15. 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).






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






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






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






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






20. 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.






21. The symbol > is read as _________.






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






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






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






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






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






27. 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.






28. The symbol < is read as ________ .






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






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






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






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






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






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






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






36. 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.






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






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






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






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






41. The set of all possible outcomes is _____________.






42. The symbol ≤ is read as __________ .






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






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






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






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






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






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






49. 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.






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