Scientific Notation Page 2
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Answer key
Simplify and express in scienti c notation:
Example 1
Example 2
(2 × 10 ) + (3 × 10 )
(7 × 10 ) – (4 × 10 )
= (2 × 10 ) + (3 × 10 ) × 10
= (7 × 10 ) × 10 – (4 × 10 )
= (2 × 10 ) + (30 × 10 )
= (700 × 10 ) – (4 × 10 )
= 32 × 10
= 696 × 10
=
3.2 × 10
=
6.96 × 10
Simplify each problem and express the answer in scienti c notation.
1) (2 × 10 ) + (5 × 10 )
2) (4 × 10 )
(9 × 10 )
–
Answer :
5.02 × 10
Answer :
3.1 × 10
3) (8 × 10 )
(3 × 10 )
4) (5 × 10 ) + (1 × 10 )
–
Answer :
7.97 × 10
Answer :
5.1 × 10
5) (4 × 10 ) + (7 × 10 )
6) (9 × 10 )
(6 × 10 )
–
Answer :
7.4 × 10
Answer :
8.4 × 10
7) (1 × 10 )
(8 × 10 )
8) (5 × 10 ) + (3 × 10 )
–
Answer :
9.2 × 10
Answer :
5.3 × 10
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