G8

Grade 8 Unit 1 Lesson 7 P TE

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Answer Key

Extension Activity

Answers will vary.

Homework

1. −√ 113 lies between ─10 and ─ 11

−√ 113 ≈− 10 .6

2. −√ퟐퟐퟑퟑퟑퟑ between –2.5 and –3

−√ 33

2

≈− 2 .9

3. √ 45 between 6 and 7

√ 45 ≈ 6 .7

4. −√ 242 between –3 and –3.5

−√ 42

2

≈− 3 .2

5. √ퟑퟑퟑퟑퟑퟑퟐퟐ between 9.5 and 10

√ 385

2

≈ 9 .8

6. (^) √ 21 between 4 and 5
   √ 21 ≈ 4 .6
   4 5 6 7 8 9
   16
   30
   28
   27
   49
   52
   53
   70
   78
   80