Question

How do we solve use each number line to show a different way to count from $580to $994?

Answer 1

To count from $580 to $994, we can use different increments on a number line: by hundreds, tens, and ones; by fifties, twenties, and ones; or by combining hundreds, fifties, tens, and ones. These methods simplify the process into manageable parts, enhancing mental calculation skills.

Step-by-step explanation:

To solve the problem of counting from $580 to $994 using a number line, we can approach it in different ways. Here are three examples:

1. Start from $580 and count by hundreds up to $900, then count by tens to reach $990, and finally count by ones to get to $994. This method uses large to small increments.

2. Another way is to count by fifties from $580 to $930, then count by twenties to reach $970, and complete with counts of $1 until $994. This method uses consistent but smaller increments compared to the first example.

3. The third method could involve counting by two hundred from $580 to $780, then by fifty to get to $930, and finally by tens to land at $990, proceeding with ones to tally up to $994. This illustrates a mixed approach using varied increments.

In each method, the process involves breaking the counting into manageable parts or increments, to make mental calculations easier and more intuitive. As we practice, our ability to do mental math can improve, which is a useful life-long skill.