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






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






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






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






5. 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.






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






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






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






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






10. 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.






11. The symbol < is read as ________ .






12. ______________ 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.






13. The symbol > is read as _________.






14. 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.






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






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






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






18. Use number lines to ________ two decimals.






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






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






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






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






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






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






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






26. 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.






27. The symbol ______ means percent.






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






29. 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.






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






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






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






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






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






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






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






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






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






39. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






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






50. 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).