Question

Add these measurements, using significant digit rules 44.2 cm + 0.123 = ___ cm

Answer 1

The awnser is 44.323

Answer 2

44.323 cm.

Explanation:

We have been given two measurements. We are asked to add these measurements using significant digits.

`\text{44.2 cm}+\text{0.123 cm}`

`\text{44.323 cm}`

Now, we will use significant figures rule to give our final answer. The rules are:

• Any non-zero digits are significant. The zeros between two digits are always significant.
• Leading zeros (zeros before non-zero numbers) are not significant.
• Trailing zeros (zeros after non-zero numbers) are significant, if they are after decimal. If trialing zeros without decimal are not significant.

Since we have three non-zero digits after decimal, so these are significant digits.

Therefore, the addition of the given measurements would be 44.323 cm.