Test your basic knowledge |

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 _______ is a ratio that compares a number to 100.






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






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






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






5. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






24. The symbol > is read as _________.






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






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






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






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






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






30. 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.






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






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






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






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






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






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






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






38. 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.






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






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






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






42. 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.






43. The symbol ≤ is read as __________ .






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






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






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






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






48. Use number lines to ________ two decimals.






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






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