Final answer:
The number of kilocalories most toddlers require per day is 1,000-1,400, which aligns with their age group's average daily requirement of approximately 1,200 kilocalories, accounting for varying levels of activity and metabolism.
Step-by-step explanation:
The number of kilocalories that most toddlers (ages 1-3 years) require per day is 1,000-1,400. This is because the energy requirements for children vary depending on their age, size, and activity level. For toddlers, who are generally between the ages of 1-3 years, the reference table shows an average daily requirement of approximately 1,200 kilocalories, or 110 kcal/kg of body weight. This range can accommodate the different levels of activity and metabolic rates found in toddlers.