(1)2.3847×0.76÷416782.3847×0.76÷41678
≈2.38×0.76÷4.17×10^4 (以0.76为准,其余各数多保留一位有效数)
≈4.33764988×10^-5 (计算结果)
≈4.3×10^-5 (修约成与“0.76”有相同的有效位数).
(1)2.3847×0.76÷416782.3847×0.76÷41678
≈2.38×0.76÷4.17×10^4 (以0.76为准,其余各数多保留一位有效数)
≈4.33764988×10^-5 (计算结果)
≈4.3×10^-5 (修约成与“0.76”有相同的有效位数).