Final answer:
To express decimal numbers in scientific notation, we need to move the decimal point until there is only one non-zero digit to the left of the decimal point. Then, we count the number of places the decimal point was moved and write it as a power of 10.
Step-by-step explanation:
To express decimal numbers in scientific notation, we need to move the decimal point until there is only one non-zero digit to the left of the decimal point. Then, we count the number of places the decimal point was moved and write it as a power of 10. Here are the matches for the given numbers:
1. 152 - 1.5x10²
2. 1.53 - 1.53x10⁰
3. 0.015 - 1.5x10⁻²
4. 0.155 - 1.55x10⁻¹
5. 150 - 1.5x10²