Here, we want to fill in the box in 37.28 +□ = 46.8. For this, We will have to find 46.8 – 37.28. We perform this operation as follows by writing the two numbers having equal number of decimal places: (Since 46.8 = 46.80) 46.80-37.28=9.52 Hence, the required number to be added to 37.28 is 9.52.