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






2. 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.






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






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






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






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






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






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






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






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






11. The symbol < is read as ________ .






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






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






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






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






16. 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.






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






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






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






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






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






22. 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.






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






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






25. The set of all possible outcomes is _____________.






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






27. 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).






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






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






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






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






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






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






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






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






36. The symbol ≤ is read as __________ .






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






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






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






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






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






42. The symbol > is read as _________.






43. 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.






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






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






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






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






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






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






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