Section A Section A Checkpoint

Problem 1

Complete the table, with equivalent measurements.

kilometers	meters	centimeters
1.7
		15,900
	23

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Solution

kilometers	meters	centimeters
1.7	1,700	170,000
0.159	159	15,900
0.023	23	2,300

Problem 2

Choose all representations of the number 100,000,000.

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Solution

A, E

Problem 3

It is 325 meters around a track. Jada ran around the track 12 times. How many kilometers did Jada run?

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Solution

3.900 kilometers. Sample response: Jada ran $325 \times 12$ meters. That’s $3,250 + 650$ or $3,900$ meters. There are 1,000 meters in a kilometer so each digit moves three places to the right because 3 thousands divided by 1000 is 3 ones and 9 hundreds divided by 1000 is 9 tenths.