8.23 x 109 = 8,230,000,000
Ten times nine equals ninety.
1,000,000,000
91.4444
9+90=99 (90 is ten times as much as 9)
To multiply something by a power of ten, as here, add 4 zeros after the nine (since the power is 4). In the case of a decimal (such as 9.14 times ten to the power 6), move the decimal point (in this example) six positions to the right, filling out with zeros where required.
9 million.
7,000,000,000. Which is 7 billion.
Decimal values vary by a power of ten. One place to the left is ten times the number, one place to the right is one tenth the number.
Ten times nine equals ninety.
1,000,000,000
91.4444
9+90=99 (90 is ten times as much as 9)
To multiply something by a power of ten, as here, add 4 zeros after the nine (since the power is 4). In the case of a decimal (such as 9.14 times ten to the power 6), move the decimal point (in this example) six positions to the right, filling out with zeros where required.
9 times out of ten
The scientific notation of 2210000000 is 2.21 x 10^9.
1.30 x 10 to the power of 9 is 1,300,000,000. Basically, take the power of ten and move the decimal place that many times. (If the power is negative, move to the left, rather than right.
3.5 times 10 to the 9 power = 3,500,000,000