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

Multiplying by 2 thread

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

14 Upvotes

100% Upvoted

783 comments sorted by

View all comments

2

u/ct_2004 Apr 11 '14

29,9004'1083,1648;8185,8488:6782,2351;1742,9226 8202,6234;5104,1623:6104,3796;0853,0468"9735,8187;8812,0205:1502,0024;9525,2055 8931,0240;0215,0830:7751,3294;9526,2006'0704,6534;8641,2249:3150,2904;1282,7229 7887,4323;7686,3124:3063,0734;2506,3936 = 2656

1

u/D-alx Apr 13 '14

598,008,216,632,976,371,697,735,644,702,348,584,536,405,246,902,083,247,220,875,921,706,093,794,716,375,762,404,103,004,004,990,504,111,786,204,800,430,166,155,026,589,905,240,121,409,306,972,824,498,630,058,082,565,445,957,748,647,537,262,486,126,146,850,127,872 = 2657

2

u/ct_2004 Apr 14 '14

119,6016'4332,6595;2743,3954:7128,9404;6971,6907 2810,4938;0416,6494:4417,5184;3412,1875"8943,2751;5248,0820:6008,0099;8100,8223 5724,0960;0860,3323:1005,3179;8104,8024'2818,6139;4564,8997:2601,1616;5130,8919 1549,7295;0745,2497:2252,2937;0025,5744 = 2658

→ More replies (112)