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Tip A quick way to do these in your head
Add place by place from the left: 368 + 457 → 300 + 400 = 700, 60 + 50 = 110, 8 + 7 = 15, so 700 + 110 + 15 = 825.
Loading the drill…
Add place by place from the left: 368 + 457 → 300 + 400 = 700, 60 + 50 = 110, 8 + 7 = 15, so 700 + 110 + 15 = 825.