Answer:1,895.75Step-by-step explanation:1. Asked:How much was his total purchase? or The total purchase for the bag of cemebt and cubi of sand and gravel 2. Given:265.75 for cement1,630.00 for a cubic of sand and gravel3. Operation:addition (+) because it asked for the total4. Number sentence265.75+1,630.00=n5. Solution and answer265.75+1,630.00= 1,895.75= P1,895.75Therefore, his total purchase costed 1,895.75 pesos.