It is 2.5/(10*10*10*10) or 2.5*0.0001
You evaluate the powers of 10 and a exponent of positive 4.
That means that powers are used in which the base is 10. It is also implied that the exponent is an integer.
(3 x 100) + (2/10^1) + (9/10^2)
2.5 * 101, or just 2.5 * 10
Expanded Notation of 1,294 = (1 x 1,000) + (2 x 100) + (9 x 10) + (4 x 1)
81.402 in expanded form using the powers of ten = (8 x 10^1) + (1 x 10^0) + (4/10^1) + (0/10^2) + (2/10^3)
You evaluate the powers of 10 and a exponent of positive 4.
That means that powers are used in which the base is 10. It is also implied that the exponent is an integer.
820.681+10
(3 x 100) + (2/10^1) + (9/10^2)
For powers of ten, the exponent indicates how many times ten is used as a factor or how many zeros happen after the one. 106 = 10 x 10 x 10 x 10 x 10 x 10 = 1,000,000
2.5 * 101, or just 2.5 * 10
Expanded Notation of 1,294 = (1 x 1,000) + (2 x 100) + (9 x 10) + (4 x 1)
1,000,000 as a power of ten would be 106. A simple way to convert numbers to powers of ten would be to count the zeros - the number you get is the same number as the exponent.
The exponent in this case is the small number written in superscript (raised) to the right of the 10.
The exponent indicates how many spaces to move the decimal point to the right (+) or to the left (-) when expanded.
81.402 = (8 x 10^1) + (1 x 10^0) + (4/10^1) + (0/10^2) + (2/10^3)