Scientific Notation Worksheet With Answers Page 5
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8Section G: Addition The first step is to make sure the exponents are the
same. We do this by changing the main number (making it bigger or smaller)
so that the exponent can change (get bigger or smaller). Then we can add the
main numbers and keep the exponents the same.
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4
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Model: (3 x 10
) + (2 x 10
) = (3 x 10
) + (0.2 x 10
)
4
= 3.2 x 10
(same exponent)
= 32,000 (final answer)
First express the problem with the exponents in the same form, then solve
the problem.
same exponent
final answer
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2
33) (4 x 10
) + (3 x 10
) = ___________________________________________
2
4
34) (9 x 10
) + (1 x 10
) = ___________________________________________
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35) (8 x 10
) + (3.2 x 10
) = ___________________________________________
-3
-4
36) (1.32 x 10
) + (3.44 x 10
) = _______________________________________
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