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(Amit KumaranZ9-e) #1
Copyright © Swun MathCopyright © Swun Math Grade 8 Unit 3 Lesson 4 P TE

Student Practice


Unit 3 · Lesson 4: Scientific Notation: Add & Subtract


Directions: Simplify the expression. Write solution in scientific notation.



  1. (5.3 × 10-^1 ) – (4.7 × 10-^1 )


Solution:
6 × 10-2


  1. (9.55 × 10-^3 ) + (1.02 × 10-^4 )


Solution:
9.652 × 10-3


  1. (4.5 × 10^4 ) – (1.2 × 10^4 )


Solution:
3.3 × 10^4


  1. (2.32 × 10^2 ) + (1.62 × 10^3 )


Solution:
1.852 × 10^3


  1. (1.24 × 10^5 ) + (5.76 × 10^4 )


Solution:
1.816 × 10^5


  1. (4.5 × 10-^6 ) – (3.6 × 10-^6 )


Solution:
9 × 10-7

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