G8

Structured Guided Practice

(A/B Partners Practice)

Directions: Simplify. Write the sum or the difference in scientific notation.

(1.03 × 10 –^2 ) + (8.87 × 10 –^2 )

Solution:

1.03 × 10-2 + 8.87 × 10-2

(1.03 + 8.87) × 10-2

9.9 × 10-2

Answer: 9.9 × 10-2
or

Convert to standard form:

0.0103 + 0.0887 = 0.0990

Convert 0.099 into Scientific Notation form.
Answer: 9.90 × 10 –2
2. (5.44 × 104 ) – (1.2 × 104 )

Solution:

5.44 × 10^4 – 1.2 × 10^4

(5.44 – 1.2) × 10^4

4.24 × 10^4

Answer: 4.24 × 10^4
or

Convert to standard form:

54,400 – 12,000 = 42,400

Convert 42,400 into Scientific Notation form.
Answer: 4.24 × 104

Structured Guided Practice