Decide if each statement is true or false. Be prepared to explain your reasoning.

1. At the 1988 Summer Olympics, Jackie Joyner-Kersee set the still-standing world record in the heptathlon, which is a combination of 7 track-and-field events. These are the results, in centimeters, of some of the events, showing the first-, second-, and third-place athletes. Complete the table to show Joyner-Kersee’s distances in meters.

   event	centimeters	meters
   long jump	727
   javelin throw	4,566
   shot put	1,580

2. Which unit of measure, centimeters, or meters, is most helpful when you picture each distance? Explain or show your reasoning.

3. Why do you think distances are measured to the nearest centimeter?

   

1. The table shows how many meters students ran during a week. Complete the table to show these distances in kilometers.

   student	distance (meters)	distance (kilometers)
   Diego	9,513
   Clare	11,018
   Priya	8,210
   Andre	10,000

2. What patterns do you notice in the table?

3. This is Tyler’s strategy to divide a whole number by 10, by 100, or by 1,000.

   

   Student work. quote, I find the quotient by shifting the digits to the right, once when I divide by 10, twice when I divide by 1 hundred, 3 times when I divide by 1 thousand. 5 thousand 6 hundred 32 divided by 10 equals 5 hundred sixty 3 and 2 tenths. 5 thousand 6 hundred 32 divided by 1 hundred equals fifty 6 and 32 hundredths. 5 thousand 6 hundred 32 divided by 1 thousand equals 5 and 6 hundred 32 thousandths. 

   Describe Tyler’s strategy to your partner.

   (Pause for teacher direction.)

4. Why does Tyler’s strategy work? Does Tyler’s strategy always work? Explain or show your reasoning.