Question

click in the box with the blue arrow pointing to 1 yard on this line:

click in the box with the blue arrow pointing to 1 meter on this line:

click in the box with the blue arrow pointing to 50 centimeters on this line:

(there are number lines with markings and blue arrows pointing to boxes, and a check answers button)

Explanation:

Step1: Convert 1 yard to meters

1 yard = 0.9144 m, so it is the box just before the 1 m mark (the second box from the left).

Step2: Convert 1 meter to feet

1 meter ≈ 3.2808 ft, so it is the box between 3 ft and 4 ft (the second box from the right in the middle line).

Step3: Convert 50 cm to meters

50 cm = $\frac{50}{100}$ m = 0.5 m, so it is the first box from the left in the bottom line.

Answer:

1. For the 1 yard box: Select the second box (arrow) from the left on the top number line.
2. For the 1 meter box: Select the second box (arrow) from the right on the middle number line.
3. For the 50 centimeters box: Select the first box (arrow) from the left on the bottom number line.