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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 the equal sign.






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






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






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






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






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






7. 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.






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






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






10. 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.






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






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






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






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






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






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






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






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






19. The symbol > is read as _________.






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






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






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






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






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






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






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






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






28. 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).






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






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






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






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






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






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






35. Use number lines to ________ two decimals.






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






37. 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.






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






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






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






41. The set of all possible outcomes is _____________.






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






43. The symbol < is read as ________ .






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






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






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






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






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






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






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