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






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






3. 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.






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






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






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






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






8. 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).






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






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






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






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






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






14. The symbol ≤ is read as __________ .






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






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






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






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






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






20. 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.






21. 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.






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






23. Use number lines to ________ two decimals.






24. The symbol ______ means percent.






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






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






27. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






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






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






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






40. 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.






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






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






43. The symbol > is read as _________.






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






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






46. The symbol < is read as ________ .






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






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






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






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