Adding Exponents Practice

In what types of problems do you have to make sure the exponents are the same before beginning to compute?

• Adding and Subtracting

• Multiplying and Dividing

• Subtracting and Dividing

• Adding and Multiplying

Give the sum in scientific notation.

(2.6 x 10⁶) + (4.2 x 10⁶)

• 6.8 x 10⁶

• 6.8 x 10¹²

• 8.4 x 10⁶

• 3.2 x 10¹²

Give the sum in scientific notation.

(4.8 x 10⁸) + (5.4 x 10⁸)

• 1.02 x 10⁸

• 1.02 x 10⁹

• 9.2 x 10⁸

Mathematical Equivalence

OFF

Give the sum of (8.7 x 10⁵) + (7.32 x 10⁷) in scientific notation

• 16.02 x 10⁷

• 7.407 x 10⁵

• 7.407 x 10⁷

• 1.602 x 10⁷

Give the sum of (9.54 x 10⁸) + (3.22 x10⁷) in scientific notation

• 1.276 x 10⁷

• 8.62 x 10¹⁵

• 12.76 x 10⁸

• 9.862 x 10⁸

What do you do to your exponents when you are multiplying in scientific notation?

• Subtract

• Multiply

• Divide

• Add

ADD.

Reminder: Use LARS to get common exponents first

(4 x 10³) + (5.2 x 10⁴)

• 9.2 x 10⁴

• 5.6 x 10⁴

• 9.2 x 10⁷

• 5.6 x 10⁷

🌟SPIRAL REVIEW

(r⁴)⁶

• 10r

• r¹⁰

• 24r

• r²⁴