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思维误区一:将大于10的数用科学记数法表示成a×10n形式时,将a和n弄错. 例1:据测算,我国每年因土地沙漠化造成的经济损失约为547.5亿元,用科学记数法表示我国一年因土地沙漠化造成的损失为亿元.
Mistakes in thinking: When a number greater than 10 is expressed in the form of a × 10n in scientific notation, a and n are mistaken. Example 1: According to calculations, the annual economic loss caused by land desertification in China is approximately RMB 54.75 billion. Using scientific notation to indicate that the loss caused by land desertification in China for one year is 100 million yuan.