Question

express the results of adding 0.203 and 22.7mm to the correct number of significant

Answer 1

$\huge\fbox\color{purple}Answer:-✍$

Use of appropriate significant figures

1. All non-zero digits are significant.
2. Zeros between non-zero digits are significant.
3. Zeros to the left of the first non-zero digit are not significant.
4. If a number ends in zeros to the right of the decimal point, those zeros are significant.

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Answer 2

Use of appropriate significant figures

1. All non-zero digits are significant.

1. Zeros between non-zero digits are significant.

1. Zeros to the left of the first non-zero digit are not significant.

1. If a number ends in zeros to the right of the decimal point, those zeros are significant.