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1.23 12.3 123 all have 3 sig. figs 2. Leading zeros are never significant. 0.0013 = 2 sig. figs. 0.14 = 2 sig. figs 3. Trapped zeros are always significant. 1.002 = 4 sig. fig 4. Trailing zeros are only significant if there is a decimal point explicitly expressed and if they are after a non-zero digit. BE CAREFUL HERE! 12.00 meters = 4 sig. fig ................
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