Changes

Activities/Abacus (view source)

8 bytes added , 08:04, 11 April 2010

m

Line 76: Line 76:

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-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

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