Adding and Subtracting Scientific Notation

Good

100

Subtract. Write your answer in scientific notation.

(8.11×10^7)–(4.3×10^7)

What is

3.81 x 10^7

200

Add. Write your answer in scientific notation.

(2×10^9)+(5.8×10^9)

what is 

7.8 x 10^9

300

Subtract. Write your answer in scientific notation.

(8.2×10^8)–(7.7×10^8)

what is

5 x 10^7

400

Subtract. Write your answer in scientific notation.

(4.47×10^6)–(3.7×10^6)

what is 

7.7x10^5

500

Add. Write your answer in scientific notation. 

(9.03×10^6)+(4.37×10^6)

what is 

1.34x10^7

Luck

100

Subtract. Write your answer in scientific notation.

(7.12×10^3)–(4.43×10^3)

 

What is 

2.69 x 10^3

200

Subtract. Write your answer in scientific notation.

(4.9×10^8)–(2.39×10^8)

what is 

2.51 x 10^8

300

Subtract. Write your answer in scientific notation. 

(1.67×10^3)–(9.7×10^2)

what is

7x10^2

400

Add. Write your answer in scientific notation. 

(2.4×10^8)+(4.87×10^8)

what is

7.27x10^8

500

Add. Write your answer in scientific notation.

(5.5×10^7)+(2×10^7)

what is 

7.5x10^7

All

100

Add. Write your answer in scientific notation.

(3.99×10^7)+(2.27×10^7)

6.26 x 10^7

200

Subtract. Write your answer in scientific notation. 

(9.832×10^3)–(1.645×10^3)

what is 

8.187 x 10^3

300

Add. Write your answer in scientific notation. 

what is 

7.404x10^9

400

Add. Write your answer in scientific notation. 

(7×10^2)+(6.9×10^2)

what is 

1.39x10^3

500

Add. Write your answer in scientifi

(2.3×10^8)+(9.3×10^8)

c notation.

what is 

1.16x10^9

Are

100

Subtract. Write your answer in scientific notation. 

(9.04×10^9)–(5.86×10^9)

what is

3.18 x 10^9

200

Subtract. Write your answer in scientific notation.

(3.7×10^8)–(1.76×10^8)

what is 

1.94 x 10^8

300

Subtract. Write your answer in scientific notation. 

(9.8×10^8)–(4×10^6)

what is 

9.76x10^8

400

Subtract. Write your answer in scientific notation. 

(1.89×10^8)–(3×10^5)

what is 

1.887x10^8

500

Add. Write your answer in scientific notation. 

(1.4×10^9)+(4×10^8)

what is

1.8x10^9

Easy

100

Subtract. Write your answer in scientific notation. 

(6×10^3)–(2.59×10^3)

what is

3.41 x 10^3

200

Add. Write your answer in scientific notation.

(6.3×10^7)+(4.2×10^6)

what is 

6.75 x 10^7

300

Subtract. Write your answer in scientific notation. 

(1.5×10^7)–(9.849×10^6)

what is 

5.151x10^6

400

Add. Write your answer in scientific notation. 

(1.9×10^8)+(3.4×10^8)

what is 

5.3x10^8

500

Subtract. Write your answer in scientific notation. 

(1.08×10^8)–(9.39×10^7)

what is

1.41x10^7