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 proportion with one fraction with a denominator of 1.






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






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






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






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






6. The set of all possible outcomes is _____________.






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






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






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






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






11. ______________ 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.






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






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






14. The symbol ______ means percent.






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






16. The symbol ≤ is read as __________ .






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






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






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






20. The symbol < is read as ________ .






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






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






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






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






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






26. Use number lines to ________ two decimals.






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






28. Together - the x coordinate and y coordinate form an ___________.






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






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






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






32. The symbol ≥ is read as ______________.






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






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






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






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






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






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. 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).






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






41. 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.






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






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






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






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






46. 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.






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






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






49. The symbol > is read as _________.






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