| Identify the multiplication property used in each step for problems #1 through #3. |
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| 1) 25 x 1 x (7 x 4) simplifies to 25 x (7 x 4)
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| 2) 25 x (7 x 4) can be written as 25 x (4 x 7) |
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| 3) 25 x (4 x 7) can be grouped as (25 x 4) x 7 |
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| 5) Solve this problem. What multiplication property applies here?
56 x 0 x 7
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| 6) Use the distributive property and rewrite each statement filling in the missing numbers.
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| 7) Multiply 5 x 49 using the distributive property. Explain how you applied the distributive property to solve the problem. |
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| Find the product for problems #8 and #9. |
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| 8) 8000 x 7 |
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| Estimate and then solve for problems #10 through #14. State the estimate and then the actual answer. |
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| 19) Iris and Sally were discussing a math problem. Iris said that 8 + 12 = 20. Sally said that 12 + 8 = 20. Who is right? Justify your answer through an addition property. |
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| 20) Iris and Sally were discussing a second math problem. Sally said that (7 + 5) + 3 = 15. Iris said that 7 + (5 + 3) is 15. Both girls followed the rules of order and determined the sum within parenthesis first, and then the final sum. (a) What simplified addition problem did Sally use to determine the final sum of 15? (b) What simplified addition problem did Iris use to determine the final the sum of 15? (c) Which addition property did both girls apply to solve their problem? |
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| 21) Iris and Sally were discussing a third math problem. Sally said that 7 + 0 = 0. Iris corrected Sally and said that 7 + 0 = 7. Who is correct? Justify your answer through an addition property. |
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26) If you were directed by your school to complete Offline Activities for this course, please enter the information on the Log Entry form.
If you are NOT required to complete Offline Activities for this course, please check the box below. |
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