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iogann1982 [59]
3 years ago
7

What is the sum of 4.9 × 102 and 6.8 × 103?

Mathematics
1 answer:
dusya [7]3 years ago
6 0

Answer:

The sum is

7.92\times 10^3

Step-by-step explanation:

We want to add

4.9\times 10^2 and 6.8\times 10^3

The sum of these two numbers is:

4.9\times 10^2 +6.8\times 10^3

This is the same as:

4.9\times 100 +6.8\times 1000

490 +6800=7290

We rewrite 7290 in standard form to get;

7.92\times 10^3

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