Algebra

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# Algebra - PowerPoint PPT Presentation

Algebra. Lesson 1-3 Square Roots. Bell Work. Warm Up Round to the nearest tenth. 1. 3.14 2. 1.97 Find each square root. 3. 4. Write each fraction in simplest form. 5. 6. Simplify.

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Presentation Transcript

### Algebra

Lesson 1-3

Square Roots

Bell Work

Warm Up

Round to the nearest tenth.

1. 3.14 2. 1.97

Find each square root.

3. 4.

Write each fraction in simplest form.

5. 6.

Simplify.

7. 8.

3.1

2.0

25

4

### Algebra

Lesson 1-3

Square Roots

Quiz 1A
• Thursday
• Lessons 1-1 through 1-5
Math Humor
• Teacher: Let’s find the square root of 1 million.
• Student: Don’t you think that is a bit radical?
Bring to Class
• Textbook
• 3-Ring Notebook
• Paper
• Pencils and eraser
• Eagerness and Curiosity
Common Courtesies
• Come in, get settled, and get ready
• If you are late, enter inconspicuously
• Don’t be the kid your fellow students wish is absent
• Enjoy, Participate, Contribute, Learn

<

<

< 6

5 <

Because 27 is closer to 25 than to 36, is close to 5 than to 6.

Because 27 is closer to 27.04 than 26.01, is closer to 5.2 than to 5.1.

Example 1: Estimating Square Roots

Estimate to the nearest tenth.

Find the two perfect squares that 27 lies between.

Find the two integers that lies between .

Try 5.2: 5.22 = 27.04

Too high, try 5.1.

5.12 = 26.01

Too low

Check On a calculator ≈ 5.1961524 ≈ 5.1 rounded to the nearest tenth.

Homework
• Yes, You have homework. Refer to your homework sheet.

Exit Ticket

name, period on sheet of paper

1. Findstimto the nearest tenth. t nearest tenth.

Simplify each expression.

2.

3.

4.

5.