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






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






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






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






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






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






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






8. 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).






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






25. 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.






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






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






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






29. The set of all possible outcomes is _____________.






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






31. The symbol ______ means percent.






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






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






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






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






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






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






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






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






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






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






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






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






44. The symbol < is read as ________ .






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






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






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






48. The symbol ≤ is read as __________ .






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






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