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






2. The symbol ≤ is read as __________ .






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






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






5. 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.






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






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






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






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






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






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






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






13. The symbol ______ means percent.






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






15. 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.






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






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






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






19. The symbol ≥ is read as ______________.






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






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






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






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






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






25. ______________ 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.






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






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






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






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






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






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






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






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






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






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






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






37. Use number lines to ________ two decimals.






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






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






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






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






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






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






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






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






46. 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.






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






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






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






50. 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.