In scientific notation, what is the sum of 2.3x10^-3 and 5.4x10^-4

2.3×10^{–3} + 5.4×10^{–4} = in the second number divide the first factor by 10 and multiply the second

one by 10

2.3×10^{–3 }+ 0.54×10^{–3 }= use the Distributive Law and carry the factor 10^{–3 }out

(2.3+0.54)×10^{–3 }= 2.84×10^{–3 }

If the values are approximate, then we need to keep only two significant figures and the answer will be

2.8×10^{–3}.

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up