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






2. The symbol > is read as _________.






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






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






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






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






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






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






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






10. 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.






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






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






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






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






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






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






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






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






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






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






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






22. The symbol ≥ is read as ______________.






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






24. The symbol ______ means percent.






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






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






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






28. 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).






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






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






31. The symbol < is read as ________ .






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






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






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






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






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






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






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






41. The set of all possible outcomes is _____________.






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






43. 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.






44. The symbol ≤ is read as __________ .






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






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






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






48. Use number lines to ________ two decimals.






49. 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.






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