Sure! Here are a few examples for you to practice subtracting numbers in scientific notation:
Example 1:
(5.4 x 10^7) - (3.2 x 10^6) =
To subtract these numbers, we need to ensure that the exponents are the same. In this case, we can rewrite 3.2 x 10^6 as 0.32 x 10^7 (since moving the decimal one place to the left increases the exponent by 1).
Now we can subtract the mantissas (the numbers before the exponent):
5.4 - 0.32 = 5.08
Finally, we keep the common exponent:
5.08 x 10^7
Example 2:
(6.75 x 10^4) - (1.25 x 10^3) =
Again, we need to ensure that the exponents are the same. We can rewrite 1.25 x 10^3 as 0.125 x 10^4.
Subtract the mantissas:
6.75 - 0.125 = 6.625
Keep the common exponent:
6.625 x 10^4
Example 3:
(9.12 x 10^8) - (2.5 x 10^7) =
The exponents are already the same, so no need for any adjustments.
Subtract the mantissas:
9.12 - 2.5 = 6.62
Keep the common exponent:
6.62 x 10^8
I hope this helps! Let me know if you have any more questions.
Subtract numbers in scientific notation practice
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