Section B Section B Checkpoint

Problem 1

Pencils come in packages of 10 and 12. Jada’s class needs 60 pencils. Which packages of pencils would you choose for Jada’s class? Explain or show your reasoning.

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Solution

Sample responses: 

  • I would get 6 packages of 10 pencils and that would give me 60 pencils.
  • I would get 5 packages of 12 pencils and that would give me 60 pencils.
Show Sample Response
Sample Response

Sample responses: 

  • I would get 6 packages of 10 pencils and that would give me 60 pencils.
  • I would get 5 packages of 12 pencils and that would give me 60 pencils.

Problem 2

Find all of the factor pairs for each number.

  1. 13

  2. 16

  3. 24

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Solution

  1. 1 and 13

  2. 1 and 16, 2 and 8, 4 and 4

  3. 1 and 24, 2 and 12, 3 and 8, 4 and 6

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Sample Response

  1. 1 and 13

  2. 1 and 16, 2 and 8, 4 and 4

  3. 1 and 24, 2 and 12, 3 and 8, 4 and 6

Problem 3

Select all of the true statements.

A
 19 is a prime number.
B
 The only factors of 9 are 1 and itself.
C
 3 is a factor of 24.
D
 56 is a multiple of 6.
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Solution
A, C
Show Sample Response
Sample Response
A, C