Answer:

1. 0.8475

2. 51.7

3. 13,290

4. 10,900

5. 0.815

Step-by-step explanation:

To multiply decimals with whole numbers, count the number of zeroes and move the decimal point to the right as the same places of the number of zeroes. To multiply decimals with decimals, count the number of decimal places and move the decimal point to the left as the same places of the number of the decimal places.

For example:

123.45 × 100 = 12,345

Count the number of zeroes. There are two zeroes. Move the decimal point two times to the right.

543.21 × 0.01= 5.4321

Count the number of decimal places. There are two decimal places. Move the decimal point two times to the left.

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