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. The symbol > is read as _________.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






19. The symbol < is read as ________ .






20. 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.






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






22. 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.






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






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






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






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






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






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






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






30. 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).






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






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






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






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






35. ______________ 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.






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






37. 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.






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






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






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






41. The symbol ≥ is read as ______________.






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






43. 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.






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






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






46. Use number lines to ________ two decimals.






47. The symbol ≤ is read as __________ .






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






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






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