Final answer:
To multiply 375 by 2.3, line up the numbers vertically and multiply each place value.
Step-by-step explanation:
To multiply 375 by 2.3, you can line up the numbers vertically and multiply each place value. Start by multiplying the ones place 5 x 3 = 15. Write down the 5 and carry the 1 to the tens place. Then, multiply the tens place: 7 x 3 = 21. Add the carried 1: 21 + 1 = 22. Write down the 2 and carry the 2 to the hundreds place. Finally, multiply the hundreds place: 3 x 3 = 9. Add the carried 2: 9 + 2 = 11. Write down the 11. Combine all the results: 862.5. Therefore, the correct answer is 1) 862.5.