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复习提要在日常生活、生产劳动和科学研究中,经常要进行各种量的计量。每种量都有各自的计量单位。在实际中,同一种量不同单位的名数,常常需要进行改写,在改写时,应注意做到四点:“看、想、算、查”。一看,看是把高级单位改写成低级单位,还是把低级单位改写成高级单位。二想,想两个改写单位之间的进率是多少。三算:如果是把高级单位改写成低级单位就乘它们之间的进率:如果是把低级单位改写成高级单位就除以
Review Summary In everyday life, productive labor and scientific research, often to carry out a variety of measurement. Each measure has its own unit of measurement. In practice, the same number of different units of the name, often need to be rewritten, in rewriting, should be done to achieve four points: “look, think, count, check.” A look, see is the reorganization of high-level units into low-level units, or rewrite the low-level units into high-level units. Two think, think of two rewriting unit rate of advance is how much. Three calculations: If it is reorganized into units of low-level units to multiply the rate of progress between them: If you are reorganizing the low-level units into advanced units divided by