Problems requiring two separate calculations, one involving addition and the other subtraction, are common in elementary mathematics education. For example, a student might be asked how much money remains after buying a toy for $5 and receiving $10 allowance. This necessitates subtracting the cost of the toy from the allowance received. Such problems build a foundation for more complex multi-step problem-solving.
Developing proficiency in these fundamental arithmetic operations is crucial for building a solid mathematical foundation. This skill translates to practical life applications involving money management, time calculations, and various measurement scenarios. Historically, the progression from single-step to multi-step problem-solving has been a cornerstone of elementary mathematical curricula, reflecting the growing complexity of numerical reasoning required in advanced studies and real-world contexts.