IM Grade 8 Unit 7 Lesson 10

How do we visualize large numbers on the number line?

• Using percentages

• Using decimals

• Using fractions

• Using powers of 10

What is the purpose of labeling tick marks on a number line?

• To represent colors

• To indicate equal parts

• To show temperature changes

• To measure distances

If the number at the end of the number line were 20, how would we find the value of each tick mark?

• By multiplying by 2

• By subtracting from the total

• By adding 10 to each part

• By dividing by the number of parts

How can we represent numbers for rough comparisons?

• As a sequence of prime numbers

• As a combination of letters and numbers

• As a sum of random numbers

• As a single digit times a power of 10

Which is larger, 4,000,000 or 5⋅10^6?

• 4,000,000

• Cannot be determined

• 5⋅10^6

• Both are equal

How do we estimate how many times larger one population is than another?

• By comparing their GDP

• By measuring the land area

• By counting the number of individuals

• By comparing their powers of 10

What power of 10 should we use to label the rightmost tick mark for plotting the speed of light through space and olive oil?

• 10^8

• 10^9

• 10^6

• 10^7

Which is faster, light through diamond or light through ice?

• Cannot be determined without specific values

• Light through diamond

• Light through ice

• Both are the same

How can we write 230,000,000 using powers of 10?

• (2.3)⋅10^8

• (23)⋅10^7

• (230)⋅10^6

• (2300)⋅10^5

What is the learning target of plotting a multiple of a power of 10 on a number line?

• To write a large number as a multiple of a power of 10

• To learn about the history of numbers

• To understand the concept of infinity

• To improve drawing skills