Question

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Explanation:

For Question 4:

Step1: Identify the problem type

We need to find how many 2 - inch beads fit on an 8 - inch string. This is a division problem where we divide the total length of the string by the length of each bead.

Step2: Set up the division

The total length of the string is 8 inches and each bead is 2 inches long. So we calculate $8\div2$.

Step3: Perform the division

$8\div2 = 4$.

One way to estimate the length of a book is to use a known object with a fixed length, like a pencil (if you know the length of the pencil, say 6 inches). Place the pencil next to the book and see how many times the length of the pencil fits along the length of the book. For example, if the book's length is about 2 times the length of a 6 - inch pencil, you can estimate the book's length as $2\times6 = 12$ inches. Another way is to use your hand span. If you know the length of your hand span (the distance from the tip of your thumb to the tip of your little finger when your hand is spread out), say it's 7 inches, you can place your hand along the length of the book and count how many hand spans fit. If it fits about 1.5 times, you can estimate the length as $1.5\times7 = 10.5$ inches.

Answer:

4 beads

For Question 5: