How do you estimate the sum of 403,446 and 396,755?

403446 is around 400000 so you round that up in your head. 396755 is close to 400000 so you round that up in your head to. Then you add them together to get 800000, which you can do in your head.

Answered by Anonymous | 2024-06-10

403446 is around 400000 so you round that up in your head. 396755 is close to 400000 so you round that up in your head to. Then you add them together to get 800000, which you can do in your head.

Answered by ZackFry | 2024-06-10

To estimate the sum of 403,446 and 396,755, round each number to the nearest thousand, resulting in 403,000 and 397,000. Adding these together gives an estimated sum of approximately 800,000. This method is helpful for quick calculations where exact values are not necessary.
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Answered by Anonymous | 2025-06-19