Worksheet for measuring length using a ruler, showing a key and a toy tractor with their respective lengths.
A worksheet titled "Measuring length using a ruler" from urbrainy.com, featuring two questions. The first question asks how long a key is, with a ruler showing the key measures 7 cm. The second question asks how long a toy tractor is, with a ruler showing the toy tractor measures 6 cm. The third question asks which is longer, the key or the toy tractor. The image includes illustrations of a key and a toy tractor, both placed above rulers marked in centimeters.