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






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






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






4. The set of all possible outcomes is _____________.






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






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






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






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






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






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






11. 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).






12. 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.






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






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






15. ______________ 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.






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






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






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






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






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






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






22. 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.






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






25. The symbol ______ means percent.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






42. The symbol ≤ is read as __________ .






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






44. 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.






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






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






47. Use number lines to ________ two decimals.






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






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






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







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