Answer:
What are given facts?
1. Each Ballpen cost 78.75
2. Mary bought 8 ballpens
3. Mary has 1000 pesos
What is asked? The problem is asking for how much change did mary recieve from her 1000 php if she bought 8 ballpens that cost 78.75 php each.
What is the hidden question? How much mary did totally pay for all the ballpens?
What are the operations to be used? Multiplication and subraction
What is the number sentence for the problem? 1000-(8x78.75)=N
What is the final answer? 370 Php
