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






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






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






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






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






6. The symbol > is read as _________.






7. 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.






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






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






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






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






12. ______________ 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.






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






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






15. The symbol < is read as ________ .






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






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






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






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






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






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






22. Instead of writing large numbers with all the zeros - you can use _________ . For example - 4 -250 -000 -000 = 4.25 x 10⁹.






23. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






32. The set of all possible outcomes is _____________.






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






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






35. 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.






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






37. The symbol ______ means percent.






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






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






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






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






42. 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.






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






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






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






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






47. 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.






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






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






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







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