Significant figures (also known as significant digits) are used in scientific and mathematical computations to determine the correctness and precision of numbers. It is critical to assess uncertainty in the outcome, which is where significant figures come into play. In this worksheet, we will learn about adding and subtracting significant numbers.

## What are significant numbers?

Significant figures are utilised to construct the number, shown as digits. These digits represent numbers in a meaningful way. In addition to figures, the term essential digits are frequently employed.

We may determine the number of significant digits by counting all values beginning with the first non-zero digit on the left. 12.45, for example, contains four significant numbers.

The significant figures of a particular number are the digits that transmit the meaning according to their correctness. 6.658, for example, contains four significant digits.

These significant figures provide accuracy to the statistics. Significant digits are another title for them.

This worksheet will help you better understand the concept behind the addition and subtraction of significant and challenge the student’s ability to identify them.

## Instructions on how to use the “Adding and subtracting significant figures worksheet with answers”:

Use this math worksheet you learn the addition and subtraction of different significant figures thoroughly.

A reflection section is included at the end of this worksheet to assist the student think about their thinking (metacognition) and analyse how they performed in the session.

Finally, it challenges the student to devise their numbers and compare them with the ones he/she learned from the worksheet.