### What does it mean to measure something to the nearest whole decimetre?

Meter sticks usually have marks for centimeters, not decimeters, so in this case, you could take the measurement to centimeters, then round. For instance, if the measurement is 53.8 centimeters, you round this to the nearest 10 centimeters (50), then convert to decimeters (5). Meter sticks usually have marks for centimeters, not decimeters, so in this case, you could take the measurement to centimeters, then round. For instance, if the measurement is 53.8 centimeters, you…