State the number of significant figures in each of the following numbers:
0.00368
State the number of significant figures in each of the following numbers:
2·653 × 104
State the number of significant figures in each of the following numbers:
653
State the number of significant figures in each of the following numbers:
0.368
0.368 has three significant figures because zeros to the left of the first non-zero digit are not significant.