The mass of the carrots is [blank_start]______[blank_end] kg.
The mass of the pumpkin is [blank_start]______[blank_end] kg.
The total mass of the carrots and the pumpkin is [blank_start]______[blank_end] kg.
The mass of the books is [blank_start]_______[blank_end] kg.
The mass of the rice is [blank_start]_______[blank_end] kg.
The books are [blank_start]______[blank_end] kg lighter than the rice.