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






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






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






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






5. 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.






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






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






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






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






10. The symbol < is read as ________ .






11. 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.






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






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






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






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






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






17. The symbol ≥ is read as ______________.






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






19. To add or subtract fractions with unlike denominators - you need to change the fractions to equivalent fractions with ____________ before you find the sum or difference.






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






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






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






23. The set of all possible outcomes is _____________.






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






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






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






27. ______________ 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.






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






29. Use number lines to ________ two decimals.






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






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






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






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






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






35. The symbol > is read as _________.






36. 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.






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






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






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






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






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






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






43. 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).






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






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






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






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






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






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






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







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