Write 870,000,000 in standard form

The decimal point needs to move to the left as the number is larger then 10 so the power of 10 in the answer will be positive.870000000.87000000.8700000.870000.87000.8700.870.87.8.7The decimal point moves a total of 8 times so the power of 10 is 8therefore the answer is 8.7 x 10⁸