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2. NUMBER THEORY 2.2. DECIMALS 2.2.4. DECIMAL MULTIPLICATION (NO CALCULATORS) Liberal Arts Math

Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

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Page 1: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

2. NUMBER THEORY2.2. DECIMALS

2.2.4. DECIMAL MULTIPLICATION

(NO CALCULATORS)

Liberal Arts Math

Page 2: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

Objectives

By the end of this lesson, you Can multiply decimal numbers without

the use of a calculator

Page 3: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

Video: Rules for Multiplying Decimals

Page 4: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

Multiplying Decimals

Multiply the numbers as if they are ordinary numbers.

Count the total number of decimal places in the two factors.

The number of decimal places in the answer must equal the total number of decimal places in the two factors. Add as many zeros as you need between

the decimal and the answer to get the needed number of decimal places

Page 5: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

5.6x 2.4

Page 6: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

5.6x 2.4224

Page 7: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

5.6x 2.4224

112

Page 8: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

5.6x 2.4224

11213.4

4

Page 9: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

5.6x 2.4224

11213.4

4

2.8x

0.15

Page 10: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

5.6x 2.4224

11213.4

4

2.8x

0.15

14028

Page 11: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

5.6x 2.4224

11213.4

4

2.8x 0.15

14028

0.420

Page 12: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

5.6x 2.4224

11213.4

4

2.8x 0.15

14028

0.420

0.33x

0.17

Page 13: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

5.6x 2.4224

11213.4

4

2.8x 0.15

14028

0.420

0.33x

0.17

23133

Page 14: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

5.6x 2.4224

11213.4

4

2.8x 0.15

14028

0.420

0.33x

0.17231

330.056

1

Page 15: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

0.0018x 0.0026

Page 16: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

0.0018x 0.0026

10836468

Page 17: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

EXAMPLES

0.0018x 0.0026

10836

0.00000468

Page 18: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

Video: Summary of Multiplying Decimals

Page 19: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

Summary Review

Do you think you Can multiply decimal numbers without

the use of a calculator?

Page 20: Liberal Arts Math. Objectives By the end of this lesson, you Can multiply decimal numbers without the use of a calculator

ANY QUESTIONS?

Liberal Arts Math

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