As with base-10 addition, when the sum is equal to the base or more, a "carry" is generated into the next place value column. Useful equivalents here are ...
5₁₀ = 10₅
6₁₀ = 11₅
7₁₀ = 12₅
9₁₀ = 14₅
10₁₀ = 20₅
The addition is shown in the attachment. The sum is 21040₅.
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The equivalent decimal addition problem is 433+499+463=1395.
