Matthew found the sum of 2 thousands 5 hundreds 3 tens 8 ones.+Victoria found the sum of 4 thousands 5 hundreds + 2 thousands 2 hundreds 3 tens 1 one. Who had the greater sum ?

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank