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Chapter 1: Q15. (page 3)

Evaluate the following expression:

4.2鈰�8.1

Short Answer

Expert verified

The value 4.2鈰�8.1is 34.02.

Step by step solution

01

Step 1. Given information.

The given expression is:

4.2鈰�8.1

02

Step 2. Write the concept.

The rule for multiplying decimals is:

  1. Multiply ignoring the decimal.
  2. Count the number of spaces to the right of the decimals.
  3. Move the decimals the same number of spaces to the left in the product.
03

Step 3. Simplify the expression.

The expression 4.2鈰�8.1can be simplified as in below.

role="math" localid="1642067222681" 4.2鈰�8.1=4.2脳8.1=34.02

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