Multiplying and Dividing Using Scientific Notation

The product of 2.2 x 10 and a number n results in 1.1 x 10⁶. What is the value of n?

• 5.0 x 10⁹

• 5.0 x 10²⁰

• 5.0 x 10^-4

• 5.0 x 10¹⁵

Tags

CCSS.8.EE.A.4

What is (9.2 x 10⁵) (4 x 10^-3) in scientific notation?

• 3.68 x 10³

• 5.2 x 10^-3

• 3.68 x 10³²

• 5.2 x 10³²

Tags

CCSS.8.EE.A.4

Leroy evaluated (4.8 x 10^-6)m(2.37 x 10^-3). His work is shown below. Which two statements describe the errors Leroy made?

(4.8 x 10^-6) (2.37 x 10^-3)

(4.8 x 2.37) (10^-6 x 10^-3)

-1.1376 x 10^-10

• He wrote -1.1376 x 10^-10 incorrectly; 1.1376 x 10^-10 = 1.1376 x 10^{-8 .} The exponent is increased to account for the extra place the decimal is moved (10^{-9+1= -8} ).

• He multiplied the coefficients; he should have added 4.8 and 2.37. The product of powers rule states that coefficients are added.

• He did not correctly evaluate the exponent. It should be evaluated (10^-6 x 10^-3) = 10^-18 as since exponents are evaluated using the same operation as the coefficients.

• He changed the sign of the coefficient.

Tags

CCSS.8.EE.A.4

• 7

• 14

• 9

• 22

Tags

CCSS.8.EE.A.4

Simplify using LARS.

Tags

CCSS.8.EE.A.3

True or False? The expression cannot be simplified because the exponents are different.

• True

• False

Tags

CCSS.8.EE.A.4

Today we are __________________ & ___________________ in Scientific Notation.

• multiplying

• dividing

• adding

• subtracting

Tags

CCSS.8.EE.A.4

Tags

CCSS.8.EE.A.4

Tags

CCSS.8.EE.A.4

Tags

CCSS.8.EE.A.4