5.NS.1 Decimals on a Number Line

What is the first thing we need to do in order to graph decimals on a number line?

• Estimate the decimals without a number line.
• Label the decimals without marking whole numbers.
• Identify the range of decimals and mark the whole numbers.
• Draw a vertical line for the decimals, with an arrow at each end.

If all numbers are > 0, what number do we place on the left end of the number line?

• -1
• 0
• 1
• 10

If the maximum/largest number is 1.2, what number should we label at the right end of our number line?

• 2

• 1.5
• 1.0
• 1.2

How do you know how many spaces to place between whole numbers when graphing a decimal?

• Always use 20 sections/spaces

• Use 5 sections/spaces for any decimal

• The number of sections/spaces corresponds to the decimal's value (tenths = 10 spaces, hundredths = 100 spaces, etc.)

• Sections/spaces are not necessary for decimals

We should always place a ____ tick mark between whole numbers when graphing on a number line.

• quarter
• halfway

• third
• whole

To graph 0.6, where should the tick mark be located in relation to the halfway tick mark?

• The tick mark for 0.6 should be located slightly to the left of the halfway tick mark.
• The tick mark for 0.6 should be located slightly to the right of the halfway tick mark.
• The tick mark for 0.6 should be located two ticks to the right of the halfway tick mark.
• The tick mark for 0.6 should be located at the halfway tick mark.

10/10 is the same as the number __.

• 10
• 0
• 1
• 5

When placing 0.75, or 75 hundredths, on a number line, we do NOT have to cut the line into hundredths because ____.

• we can represent it as halfway between, 0.7 and 0.8, which is easier than cutting into hundredths.

• it is a whole number and does not need division.
• it can be easily approximated as 1.
• it is less than 1 and does not require precision.

If you place the hallway tick mark (1.5), how many other tick marks should you draw to accurately label 1.2?

• 2
• 3
• 1
• 4