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






2. The symbol > is read as _________.






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






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






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






6. 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.






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






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






9. The symbol ______ means percent.






10. 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.






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






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






15. 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.






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






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






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






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






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






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






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






23. The symbol ≤ is read as __________ .






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






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






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






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






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






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






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






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






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






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






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






35. ______________ 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.






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






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






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






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






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






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






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






43. The symbol ≥ is read as ______________.






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






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






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






47. The set of all possible outcomes is _____________.






48. 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.






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






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