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






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






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






5. The symbol < is read as ________ .






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






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






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






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






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






11. The set of all possible outcomes is _____________.






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






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






14. The symbol ≤ is read as __________ .






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






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






17. 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.






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






19. 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.






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






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






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






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






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






25. The symbol ______ means percent.






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






27. 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.






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






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






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






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






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






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






34. 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.






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






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






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






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






39. 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).






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






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






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






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






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






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






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






47. The symbol > is read as _________.






48. The symbol ≥ is read as ______________.






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






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