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






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






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






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






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






6. The set of all possible outcomes is _____________.






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






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






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






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






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






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






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






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






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






16. ______________ 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.






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






18. The symbol ______ means percent.






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






20. Use number lines to ________ two decimals.






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






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






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






24. 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.






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






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






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






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






29. The symbol ≤ is read as __________ .






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






31. The symbol < is read as ________ .






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






33. The symbol ≥ is read as ______________.






34. 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.






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






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






37. The symbol > is read as _________.






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






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






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






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






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






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






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






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






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






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






48. 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).






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






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