What is the sum of 4.2 × 105 and 5.3 × 105?
Solution:
The sum of 4.2 × 105 and 5.3 × 105
⇒ (4.2 × 105 + 5.3 × 105)
⇒ (4.2 + 5.3) × 105
⇒ 9.5 × 105
Example:
What is the sum of 5.5 × 109 and 6.5 × 109
Solution:
The sum of 5.5 × 109 and 6.5 × 109
⇒ ( 5.5 × 109 + 6.5 × 109)
⇒ (5.5 + 6.5)× 109
⇒ 12 × 109
Thus the sum of 5.5 × 109 and 6.5 × 109 is 12× 109
What is the sum of 4.2 × 105 and 5.3 × 105?
Summary:
The sum of 4.2 × 105 and 5.3 × 105 is 9.5 × 105.
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