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






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






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






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






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






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






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






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






9. The set of all possible outcomes is _____________.






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






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






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






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






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






15. 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.






16. The symbol < is read as ________ .






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






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






19. 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.






20. Use number lines to ________ two decimals.






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






22. The symbol ≤ is read as __________ .






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






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






25. 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.






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






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






28. The symbol ______ means percent.






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






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






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






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






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






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






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






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






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






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






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






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






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






42. 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.






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






44. 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.






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






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






47. The symbol > is read as _________.






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






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






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