Wk 6: Subtracting Scientific Notation

Front

What is scientific notation?

Back

A way of expressing numbers that are too large or too small to be conveniently written in decimal form, using powers of ten.

Front

How do you subtract numbers in scientific notation?

Back

Align the exponents. If they are different, convert one number to have the same exponent as the other before subtracting the coefficients.

Front

Solve: (8.0 x 10^13) - (7.5 x 10^12)

Back

5.0 x 10^11

Front

Convert 2.2 x 10^6 to standard form.

Back

2,200,000

Front

Solve: (2 x 10^3) - (1.9 x 10^2)

Back

1.81 x 10^3

Front

Solve: (7.32 x 10^6) - (4.01 x 10^8)

Back

-3.937 x 10^8

Front

Which is the smallest? 1.3 x 10^20, 2.9 x 10^21, 9.5 x 10^32, 8.4 x 10^19

Back

8.4 x 10^19

Front

What is the coefficient in scientific notation?

Back

The number in front of the power of ten.

Front

What does the exponent in scientific notation indicate?

Back

The number of times the base (10) is multiplied by itself.

Front

How do you convert a number from standard form to scientific notation?

Back

Move the decimal point to create a number between 1 and 10, and count the number of places moved to determine the exponent.