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






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






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






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






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






6. The symbol > is read as _________.






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






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






9. 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.






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






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






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






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






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






15. ______________ 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.






16. 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.






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






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






19. 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.






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






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






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






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






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






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






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






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






28. The _________ of a circle is twice the length of the radius.






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






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






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






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






33. 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).






34. The symbol < is read as ________ .






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






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






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






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






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






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






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






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






43. The set of all possible outcomes is _____________.






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






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






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






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






48. Use number lines to ________ two decimals.






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






50. The symbol ______ means percent.







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