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






2. The symbol ≤ is read as __________ .






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






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






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






6. The symbol < is read as ________ .






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






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






9. 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.






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






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






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






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






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






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






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






17. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






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






28. 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.






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






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






31. The ___________ of a circle is equal to π times its diameter or π times twice its radius. C = π d or C = 2 π r.






32. 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).






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






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






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






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






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






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






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






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






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






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






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






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






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






46. ______________ 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.






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






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






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






50. The symbol ______ means percent.