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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. The symbol ≤ is read as __________ .






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






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






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






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






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






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






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






9. The symbol > is read as _________.






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






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






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






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






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






15. 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.






16. The symbol < is read as ________ .






17. Use number lines to ________ two decimals.






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






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






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






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






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






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






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






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






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






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






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






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






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






31. 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.






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






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






34. 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.






35. 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).






36. 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.






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






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






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






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






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






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






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






44. The set of all possible outcomes is _____________.






45. The symbol ≥ is read as ______________.






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






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






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






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






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