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






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






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






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






5. The set of all possible outcomes is _____________.






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






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






8. 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.






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






10. The symbol ______ means percent.






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






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






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






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






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






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






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






18. The symbol > is read as _________.






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






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






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






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






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






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






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






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






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






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






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






31. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






47. 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.






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






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






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).