A mouse has a mass of 18 g. A guinea pig has a mass of 0.85 kg. Is the mass of the two animals together greater or less than 1 kg? And why?
2 answers
Isn't the mouse mass .018kg?
If the mouse weighs 0.018 kg (18 g), and the guinea pig weighs 0.85, they both add up to weigh 0.868 kg, which is less than 1 kg.