add Up 412(8) and 257(8) = 671 Column

Calculator of numbers in various number systems.

Adding, subtracting, multiplying, and dividing numbers in a column. Moreover, numbers can be entered in different number systems.

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Enter two numbers and specify their base of the number system:
.
+412
257
671
the Final answer: 4128 + 2578 = 6718

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