Unformatted text preview: Multiple Choice: 1. Using the set model for the addition of whole numbers. which of the following pairs of sets
could be used to show that 2 + 4 is 6?
a. la. bl and lb. c. d. e] b. [2] and 14]
c. ix. yl and Ix. y. 2. wt. d. [1. 3 and I2. 4. 6. 8t 2. Which of the following does not model division?
at. There are n objects. You can place them in at equivalent piles. How many will be In each pile?
b. There are to objects. You can place the objects in a rectangular array with m rows. How many columns are there?
c. There are n objects. You can make at piles. How many objects will each pile you obtain? 3. Which of these isfaise?
a. 3‘35=393' b. 49:2‘ c. 5“+5’=5*"‘2 d. 4363=(4s)3 8h ort Answer: 4. Rewrite the following expression as an illustration of the commutative property 01' addition. Give two answers.
[3 + 4] + 5 = 5. Which properties would you use to justify the steps of the computation below?
5637 + 43)  5t30 + 7) + 43] 530 + [7 + 43)] 5(30 + 50) 5  30 + 5  50 6. Using this addition table ﬁnd (A  Bl  C. 7. What multiplication problem is represented below. How else could it be represented? 0 2 4 6 B 10 12 the quotient and remainder of 179 divided by i l on 8. Explain how a ﬁfth grader could find
key. What is the quotient and remainder? a calculator without using the division ._...__—_.._. ”a 9. For each of the following arithmetic statements. write a “story problem“ that would be
solved with the statement and approach given. a. 56 — 37 Take away .13. 89 — 16 Missing addend c. 26 x 18 Rectangular an'ay umbers l to 20. What patterns do you observe In the 10. Make a table at squares for the :1
ing digit of 75°. last digits? Explain how you could use your observations to ﬁnd the end
56'. and 37” without doing the multiplication completely. ...
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 Spring '11
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 Algebra

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