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.
The number 98.704 in expanded form using powers of ten is expressed as (9 \times 10^1 + 8 \times 10^0 + 7 \times 10^{-1} + 0 \times 10^{-2} + 4 \times 10^{-3}). This breaks down each digit according to its place value, with the whole numbers represented by positive powers of ten and the decimal digits by negative powers of ten.
(3 x 100) + (2/10^1) + (9/10^2)
In expanded notation using powers of ten, 250,000 can be expressed as (2 \times 10^5 + 5 \times 10^4 + 0 \times 10^3 + 0 \times 10^2 + 0 \times 10^1 + 0 \times 10^0). Simplifying this, it becomes (2 \times 100,000 + 5 \times 10,000). Thus, the expanded form is (200,000 + 50,000).
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)
In expanded notation using powers of ten, 250,000 can be expressed as (2 \times 10^5 + 5 \times 10^4 + 0 \times 10^3 + 0 \times 10^2 + 0 \times 10^1 + 0 \times 10^0). Simplifying this, it becomes (2 \times 100,000 + 5 \times 10,000). Thus, the expanded form is (200,000 + 50,000).
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)
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)