John by six pencils at the book bar each pencil cost $.20 how can John use the number line to find the total cost of pencils

Start at blank on the number line mark blank part that are each blank. The product blank represents the total cost, which is blank.

1 answer

To find the total cost of the pencils using a number line, we can break it down step by step.

  1. Identify the starting point: Start at 0 on the number line, which represents $0.

  2. Mark intervals: Each pencil costs $0.20. Since John is buying 6 pencils, you would mark increments of $0.20 on the number line.

  3. Count the increments: You need to mark 6 parts on the number line, one for each pencil.

  4. Calculate each mark: Start at 0 and move to the right:

    • 1st mark: $0.20
    • 2nd mark: $0.40
    • 3rd mark: $0.60
    • 4th mark: $0.80
    • 5th mark: $1.00
    • 6th mark: $1.20
  5. Final total: The product of the number of pencils (6) and the cost per pencil ($0.20) represents the total cost, which is $1.20.

So, to fill in the blanks:

Start at 0 on the number line, mark 6 parts that are each $0.20. The product 6 x $0.20 represents the total cost, which is $1.20.