Question

463 into 10 ki power minus K7 and 14. 63 into 10 ki power minus K7 write in standard form

Answer 1

To add or subtract numbers in standard form, write the numbers with the same power of 10:

4.61 x 103 + 1.22 x 104

= 4.61 x 103 + 12.2 x 103 (convert both numbers to the same power of 10)

= (4.61 + 12.2) x 103

= 16.81 x 103 (add the two decimal numbers together)

= 1.681 x 104 (convert the number back into standard form).

The calculation could have been completed in other ways for the same answer.

To multiply or divide numbers in standard form, multiply the decimal parts together; and use the laws of indices to multiply the powers of 10 together.

For example, (8.44 x 103) x (4.2 x 102):

= 8.44 x 4.2 x 103 x 102

= 35.488 x 105

= 3.5488 x 106 (convert back to standard form).