Question bank: Number Line: Natural Numbers

Ana is learning to use the number line to represent natural numbers. She has two markers, one at position 15 and another at position 20. Considering that Ana wants to add a third marker between these two, which natural number should be chosen to maintain a correct and equally spaced sequence on the number line from 15 to 20?

Emma and João are playing jump rope on a sunny day in the park. They are using a very long rope that extends over several rows of square tiles on the ground, each tile being the size of a foot. They start jumping from the first row of tiles, and with each jump, they move to the next row. After jumping several times, they decide it's time to measure the length of their 'jump tracks'. The row of tiles where they started is number 0. To help them better understand how many jumps they have taken and in which row they are, you should create a number line that represents the number of jumps by both Emma and João, and indicate in which row number each of them will be if we know that Emma took 8 jumps and João took 10 jumps. What row number represents the position of Emma and João on the number line, respectively?

Imagine you have some stickers with the numbers 1, 2, 3, 4, 5, and 6. You want to organize them in a line, so that number 1 is at the beginning, followed by 2, and so on, until 6 is the last sticker in the line. How would you place these stickers in a number line so that they are in the correct order? Describe in your own words what the number line looks like and explain how you would organize the numbers on it.

Let's imagine that we are organizing a line of ants, and for that, we will use a straight line on the ground. In this line, called a number line, we will place the natural numbers in order, one next to the other, starting from the number 1. So, if we have a pair of ants, the first one is under the number 3 and the second one is under the number 5, what number is the middle ant, the one between the number 3 and the number 5, holding? Write down the number that the middle ant is holding.

João and Maria are playing with a number line, which is like a line that helps show the order of numbers. They have the natural numbers from 1 to 10 to place on the number line. João thinks that the number 8 should be closer to 10 because it is a big number. Maria thinks that the number 3 should be closer to 10 because they are counting until they reach 10. Help João and Maria solve this question: where should the numbers 3 and 8 be placed on the number line so that they follow the order of natural numbers? Explain the reason for your choices.