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mLine 76:
Line 76: − + − + − + − +
→Subtraction
<gallery>
<gallery>
File:Abacus-26.png|26
File:Abacus-26.png|26
File:Abacus-minus-2.png|–2=24
File:Abacus-minus-2.png|26–2=24
File:Abacus-minus-4.png|–4=20
File:Abacus-minus-4.png|24–4=20
File:Abacus-carry-10.png|carry 10 to the right
File:Abacus-carry-10.png|carry 10 to the right
File:Abacus-minus-6.png|–6=14
File:Abacus-minus-6.png|20–6=14
File:Abacus-minus-10.png|–10=4
File:Abacus-minus-10.png|14–10=4
</gallery>
</gallery>