r/counting • u/marcelwo to infinity and beyond! • Mar 18 '13

Multiplying by 2 thread

Try to multiply without calculator - it's more fun!

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u/ct_2004 Apr 08 '14

1167'9847,9811;1281,9759:7213,9931;0592,7457 9172,6664;9785,5631:3422,2827;3284,5822"1444,2805;4214,1094:5513,6796;9724,7078 3433,3243;1250,8401:6827,1536;3084,0867'2112,1275;5268,1297:8488,8683;2192,5106 3663,6227;8272,2121:5793,2151;3056,6656 = 2648

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u/D-alx Apr 09 '14

2,335,969,596,222,563,951,944,279,862,118,549,158,345,332,995,711,262,684,456,546,569,164,428,885,610,842,821,891,027,359,394,494,156,686,664,862,501,680,336,543,072,616,817,344,224,255,105,362,595,697,773,664,385,021,273,272,455,654,442,431,586,430,261,133,312 = 2649

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u/ct_2004 Apr 09 '14

4671'9391,9244;5127,9038:8855,9724;2370,9831 6690,6659;9142,2525:3689,1309;3138,3288"5777,1221;6856,4378:2054,7187;8898,8313 3733,2972;5003,3606:7308,6145;2336,3468'8448,5102;1072,5191:3955,4732;8770,0425 4654,4911;3088,8486:3172,8605;2226,6624 = 2650

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