End of Rounding

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal part.

Front

How many significant figures are in the number 0.012 km?

Back

2 significant figures.

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. It is written as a number between 1 and 10 multiplied by a power of 10.

Front

Express 23400 in proper scientific notation.

Back

2.34 x 10^4.

Front

How many significant figures are in the number 100000000?

Back

1 significant figure.

Front

What is rounding?

Back

Rounding is the process of reducing the number of significant digits in a number, which can make it easier to work with.

Front

What is 0.658 rounded to 1 significant figure?

Back

0.7.

Front

Round 678 to the nearest hundreds.

Back

700.

Front

What is the rule for rounding numbers?

Back

If the digit to the right of the rounding place is 5 or greater, round up. If it is less than 5, round down.

Front

How do you identify significant figures in a whole number?

Back

In whole numbers, only non-zero digits are significant. Leading zeros are not significant.