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






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






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






4. The symbol ______ means percent.






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






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






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






8. 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.






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






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






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






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






13. 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.






14. The symbol < is read as ________ .






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






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






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






18. Use number lines to ________ two decimals.






19. The symbol ≤ is read as __________ .






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






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






22. 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.






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






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






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






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






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






28. ______________ 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.






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






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






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






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






33. 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.






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






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






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






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






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






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






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






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






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






43. The set of all possible outcomes is _____________.






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






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






46. The symbol > is read as _________.






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






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






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






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