Big Ideas Math: Modeling Real Life, Grade 8
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Big Ideas Math: Modeling Real Life, Grade 8 View details
1. Finding Square Roots
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Exercise 1 Page 378

Start by factoring out 10^3.

6.7* 10^3

Practice makes perfect
We want to add two numbers that are written in scientific notation. (4.3* 10^3)+(2.4* 10^3) Notice that the exponent of 10 is the same for both numbers. To add the expressions, we can factor out 10^3.
(4.3* 10^3)+(2.4* 10^3)
(4.3+2.4)* 10^3
6.7* 10^3