multiply and divide in scientific notation

Front

What is scientific notation?

Back

A way to express very large or very small numbers using powers of ten, in the form a × 10^n, where 1 ≤ a < 10 and n is an integer.

Front

What does a positive exponent in scientific notation indicate?

Back

The original number was a really big number.

Front

What does a negative exponent in scientific notation indicate?

Back

The original number was a really small number.

Front

How do you multiply numbers in scientific notation?

Back

Multiply the coefficients and add the exponents. For example, (a × 10^m) × (b × 10^n) = (a × b) × 10^(m+n).

Front

How do you divide numbers in scientific notation?

Back

Divide the coefficients and subtract the exponents. For example, (a × 10^m) ÷ (b × 10^n) = (a ÷ b) × 10^(m-n).

Front

What is the correct scientific notation for 20350?

Back

2.035 × 10^4.

Front

What is the result of (9.6×10^3) × (6.7×10^2) in scientific notation?

Back

6.432×10^6.

Front

What is the result of (9.87 × 10^7) - (7.42 × 10^7) in scientific notation?

Back

2.45 × 10^7.

Front

Back

2.1×10^7.

Front

Which of the following is correct scientific notation: 20.35 x 10^4, .2035 x 10^4, 2035^4, 2.035 x10^4?

Back

2.035 x10^4.