Final answer:
The value of 20×1000 is 20,000. This result is obtained by multiplying the number 20 by 1000, or by moving the decimal three places to the right in the case of whole numbers.
Step-by-step explanation:
The value of 20×1000 is computed by multiplying the two numbers. Multiplication is a basic mathematical operation where we add a number (the multiplicand) to itself a certain number of times (the multiplier). In this case, 20 is the multiplicand and 1000 is the multiplier. So, 20 added to itself 1000 times is equivalent to the operation 20×1000. To calculate, we can remember that multiplying by 1000 is the same as moving the decimal point three places to the right for whole numbers, which in this case gives us 20,000. This is because 1000 equals 10³ and multiplying any number by 10³ increases its value by three orders of magnitude (in this context, three zeros). Therefore, the correct answer to the question of the value of 20×1000 is 20,000, which corresponds to option (b).