Simplifying Expressions In Scientific Notation Worksheet With Answer Key Page 2
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Answer key
Simplify and express in scienti c notation:
Example 1
Example 2
(8 × 10 ) + (4 × 10 )
(6 × 10 ) – (2 × 10 )
= (8 × 10 ) + (4 × 10 ) × 10
= (6 × 10 ) × 10 – (2 × 10 )
= (8 × 10 ) + (4000 × 10 )
= (60 × 10 ) – (2 × 10 )
= 4008 × 10
= 58 × 10
=
4.008 × 10
=
5.8 × 10
Simplify each problem and express the answer in scienti c notation.
1) (3 × 10 )
(5 × 10 )
2) (9 × 10 )
(7 × 10 )
+
–
Answer :
3.5 × 10
Answer :
8.93 × 10
3) (6 × 10 )
(5 × 10 )
4) (2 × 10 )
(8 × 10 )
–
+
Answer :
5.5 × 10
Answer :
2.8 × 10
5) (3 × 10 )
(7 × 10 )
6) (5 × 10 )
(10 × 10 )
+
–
Answer :
3.07 × 10
Answer :
4.9 × 10
7) (4 × 10 )
(2 × 10 )
8) (6 × 10 )
(4 × 10 )
–
+
Answer :
3.8 × 10
Answer :
6.4 × 10
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