Question

An expression is shown 7×3×103 p.s the three is in the top of the ten) What is the value of the expression ​

Answer 1

Answer: 2.1×10^4

Explanation:

7×3×10^3

First you multiply 7×3 = 21

Then add the rest 21×10^3

Then simplify 2.1×10^4

You can check this since:

7×3000 = 21000

When simplified

2.1×10^4