Has the trash amount increased or decreased?

Screen Shot 2015-12-09 at 10.50.32 AMGrade level: 5th

Skills: Read and write decimals 

Related environmental issues: Reduce, reuse & recycle

Area level: Household

The table below shows on average, how much waste was generated from one person a day between 1960 and 2010 in the United States .

  1. Write the number of the year 1960 in words.
  2. Which year has the number shown as four and seventy-four hundredths?
  3. Write the number in the year 1990 as expanded number.
  4. Which year has the number shown as (3 x 1)  + (2 x 1/10)+ (5 x 1/100)?
  5. Which two years have the same number in the tenths place and the hundredth place?

Source: US Energy Information Administration

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Answer keys

  1. two and sixty-eight hundredths
  2. year 2000
  3. (4 x 1)  + (5 x 1/10)+ (7 x 1/100)
  4.  year 1970
  5. year 1980 and year 2010