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






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






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






4. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






20. ______________ 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.






21. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






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






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






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






34. 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.






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






36. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






50. The symbol > is read as _________.







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