Example 1:

To calculate 103 x 104:

- Add the the ones from the multiplicand to the multiplier.

103 + 4 = 107. - Multiply the ones from the multiplier with the ones from the multiplicand.

3 x 4 = 12. - Concatenate the results from step 1 and 2. Therefore, 103 x 104 = 10712.

### Example 2:

To calculate 1005 x 1002:

- Add the the ones from the multiplicand to the multiplier.

1005 + 2 = 1007. - Multiply the ones from the multiplier with the ones from the multiplicand. Prepend a zero to the result.

5 x 1 = 010. - Concatenate the results from step 1 and 2. Therefore, 1005 x 1002 = 1007010.

### Example 3:

To calculate 97 x 98:

- Subtract from 10, the ones from multiplicand.

10 - 8 = 2. - Subtract from multiplier, the result from step 1.

97 - 2 = 95. - Subtract from 10, the ones from multiplier.

10 - 7 = 3. - Multiply the result from step 3 with the result from 1. Prepend a zero.

2 x 3 = 06. - Concatenate the results from step 2 and step 4. Therefore, 97 x 98 = 9506.

### Example 4:

To calculate 993 x 995:

- Subtract from 10, the ones from multiplicand.

10 - 5 = 5. - Subtract from multiplier, the result from step 1.

993 - 5 = 988. - Subtract from 10, the ones from multiplier.

10 - 3 = 7. - Multiply the result from step 3 with the result from 1. If you get a one digit number, prepend two zeroes, otherwise prepend just one zero.

5 x 7 = 035. - Concatenate the results from step 2 and step 4. Therefore, 993 x 995 = 988035.

### Exercise:

If domain name is cost $9.90 each, what is the cost if you want to buy 92 domain?