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






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






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






4. The symbol < is read as ________ .






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






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






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






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






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






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






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






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






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






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






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






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






18. The symbol > is read as _________.






19. 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.






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






21. The symbol ≤ is read as __________ .






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






23. The set of all possible outcomes is _____________.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






39. The symbol ______ means percent.






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






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






42. Use number lines to ________ two decimals.






43. 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).






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






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






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






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






48. The symbol ≥ is read as ______________.






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






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