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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 symbol < is read as ________ .






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






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






4. The set of all possible outcomes is _____________.






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






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






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






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






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






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






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






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






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






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






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






17. 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.






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






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






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






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






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






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






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






25. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






40. 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).






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






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






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






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






45. The symbol ≤ is read as __________ .






46. 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.






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






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






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






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