Calcul mental rapide - doublez le nombre - Statistiques

Statistiques générales
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Statistiques - réponses
Nombre Double % Correct
8 16
91%
5 10
89%
6 12
88%
7 14
88%
9 18
88%
11 22
84%
12 24
84%
10 20
83%
51 102
82%
60 120
82%
15 30
82%
14 28
81%
22 44
81%
31 62
81%
40 80
81%
70 140
80%
100 200
80%
13 26
80%
30 60
80%
33 66
80%
41 82
80%
44 88
80%
50 100
79%
101 202
79%
20 40
79%
21 42
79%
32 64
79%
43 86
79%
53 106
78%
61 122
78%
80 160
78%
90 180
78%
16 32
78%
18 36
78%
24 48
78%
34 68
78%
42 84
78%
45 90
78%
52 104
77%
71 142
77%
111 222
77%
17 34
77%
200 400
77%
25 50
77%
35 70
77%
400 800
77%
500 1000
76%
54 108
76%
62 124
76%
64 128
76%
700 1400
76%
110 220
76%
140 280
76%
23 46
76%
300 600
76%
600 1200
75%
81 162
75%
900 1800
75%
102 204
75%
103 206
75%
104 208
75%
150 300
75%
210 420
75%
401 802
75%
49 98
75%
55 110
74%
63 126
74%
75 150
74%
800 1600
74%
112 224
74%
19 38
74%
220 440
74%
222 444
74%
26 52
74%
27 54
74%
29 58
74%
36 72
74%
444 888
74%
56 112
73%
72 144
73%
84 168
73%
105 210
73%
106 212
73%
120 240
73%
121 242
73%
122 244
73%
130 260
73%
201 402
73%
28 56
73%
301 602
73%
46 92
73%
65 130
72%
82 164
72%
303 606
72%
37 74
72%
410 820
72%
420 840
72%
47 94
72%
501 1002
71%
510 1020
71%
57 114
71%
73 146
71%
91 182
71%
99 198
71%
108 216
71%
109 218
71%
113 226
71%
114 228
71%
125 250
71%
131 262
71%
151 302
71%
211 422
71%
240 480
71%
302 604
71%
310 620
71%
39 78
71%
440 880
71%
48 96
71%
511 1022
70%
58 116
70%
610 1220
70%
66 132
70%
83 166
70%
92 184
70%
107 214
70%
124 248
70%
141 282
70%
144 288
70%
202 404
70%
212 424
70%
215 430
70%
221 442
70%
250 500
70%
38 76
70%
402 804
70%
404 808
70%
411 822
70%
450 900
70%
502 1004
69%
505 1010
69%
520 1040
69%
59 118
69%
601 1202
69%
701 1402
69%
710 1420
69%
74 148
69%
115 230
69%
116 232
69%
123 246
69%
230 460
69%
311 622
69%
320 640
69%
405 810
69%
506 1012
68%
801 1602
68%
810 1620
68%
133 266
68%
142 284
68%
160 320
68%
203 406
68%
204 408
68%
205 410
68%
333 666
68%
340 680
68%
350 700
68%
430 860
68%
503 1006
67%
530 1060
67%
550 1100
67%
611 1222
67%
69 138
67%
702 1404
67%
77 154
67%
85 170
67%
206 412
67%
208 416
67%
209 418
67%
213 426
67%
214 428
67%
260 520
67%
305 610
67%
330 660
67%
403 806
67%
406 812
67%
407 814
67%
412 824
67%
504 1008
66%
507 1014
66%
540 1080
66%
602 1204
66%
603 1206
66%
67 134
66%
720 1440
66%
802 1604
66%
901 1802
66%
93 186
66%
95 190
66%
132 264
66%
152 304
66%
180 360
66%
304 608
66%
313 626
66%
331 662
66%
414 828
66%
512 1024
65%
630 1260
65%
76 152
65%
804 1608
65%
89 178
65%
207 414
65%
231 462
65%
232 464
65%
307 614
65%
508 1016
64%
640 1280
64%
68 136
64%
811 1622
64%
134 268
64%
154 308
64%
241 482
64%
315 630
64%
415 830
64%
441 882
64%
509 1018
63%
515 1030
63%
522 1044
63%
620 1240
63%
703 1406
63%
79 158
63%
905 1810
63%
94 188
63%
135 270
63%
143 286
63%
153 306
63%
170 340
63%
190 380
63%
223 446
63%
224 448
63%
225 450
63%
233 466
63%
270 540
63%
308 616
63%
312 624
63%
314 628
63%
321 642
63%
332 664
63%
408 816
63%
421 842
63%
422 844
63%
604 1208
62%
606 1212
62%
650 1300
62%
705 1410
62%
750 1500
62%
803 1606
62%
820 1640
62%
903 1806
62%
910 1820
62%
98 196
62%
126 252
62%
199 398
62%
244 488
62%
251 502
62%
280 560
62%
306 612
62%
309 618
62%
322 644
62%
409 818
62%
424 848
62%
425 850
62%
513 1026
61%
514 1028
61%
605 1210
61%
704 1408
61%
78 156
61%
86 172
61%
87 174
61%
96 192
61%
145 290
61%
216 432
61%
242 484
61%
360 720
61%
413 826
61%
442 884
61%
460 920
61%
608 1216
60%
707 1414
60%
830 1660
60%
840 1680
60%
88 176
60%
902 1804
60%
904 1808
60%
97 194
60%
117 234
60%
128 256
60%
323 646
60%
325 650
60%
521 1042
59%
533 1066
59%
614 1228
59%
711 1422
59%
730 1460
59%
805 1610
59%
808 1616
59%
920 1840
59%
950 1900
59%
118 236
59%
218 436
59%
252 504
59%
370 740
59%
431 862
59%
525 1050
58%
607 1214
58%
609 1218
58%
612 1224
58%
706 1412
58%
740 1480
58%
911 1822
58%
119 238
58%
155 310
58%
235 470
58%
255 510
58%
316 632
58%
341 682
58%
433 866
58%
451 902
58%
480 960
58%
524 1048
57%
531 1062
57%
544 1088
57%
622 1244
57%
807 1614
57%
850 1700
57%
217 434
57%
226 452
57%
234 468
57%
243 486
57%
253 506
57%
299 598
57%
324 648
57%
334 668
57%
351 702
57%
416 832
57%
613 1226
56%
615 1230
56%
708 1416
56%
722 1444
56%
906 1812
56%
907 1814
56%
909 1818
56%
127 254
56%
137 274
56%
161 322
56%
245 490
56%
423 846
56%
432 864
56%
434 868
56%
532 1064
55%
580 1160
55%
129 258
55%
149 298
55%
158 316
55%
162 324
55%
290 580
55%
335 670
55%
343 686
55%
443 886
55%
452 904
55%
490 980
55%
523 1046
54%
551 1102
54%
560 1120
54%
660 1320
54%
709 1418
54%
712 1424
54%
714 1428
54%
806 1612
54%
809 1618
54%
908 1816
54%
930 1860
54%
940 1880
54%
136 272
54%
146 292
54%
156 312
54%
318 636
54%
344 688
54%
390 780
54%
399 798
54%
499 998
54%
516 1032
53%
535 1070
53%
570 1140
53%
621 1242
53%
812 1624
53%
815 1630
53%
175 350
53%
219 438
53%
352 704
53%
355 710
53%
426 852
53%
470 940
53%
541 1082
52%
542 1084
52%
545 1090
52%
552 1104
52%
555 1110
52%
633 1266
52%
822 1644
52%
912 1824
52%
990 1980
52%
139 278
52%
147 294
52%
181 362
52%
228 456
52%
249 498
52%
254 508
52%
342 684
52%
345 690
52%
445 890
52%
517 1034
51%
553 1106
51%
625 1250
51%
631 1262
51%
641 1282
51%
644 1288
51%
715 1430
51%
721 1442
51%
725 1450
51%
760 1520
51%
814 1628
51%
821 1642
51%
138 276
51%
227 454
51%
236 472
51%
246 492
51%
317 634
51%
354 708
51%
418 836
51%
435 870
51%
590 1180
50%
616 1232
50%
632 1264
50%
713 1426
50%
148 296
50%
171 342
50%
198 396
50%
248 496
50%
256 512
50%
261 522
50%
319 638
50%
380 760
50%
455 910
50%
518 1036
49%
554 1108
49%
599 1198
49%
623 1246
49%
670 1340
49%
813 1626
49%
860 1720
49%
915 1830
49%
921 1842
49%
157 314
49%
159 318
49%
163 326
49%
165 330
49%
275 550
49%
353 706
49%
419 838
49%
429 858
49%
454 908
49%
618 1236
48%
624 1248
48%
680 1360
48%
733 1466
48%
833 1666
48%
922 1844
48%
328 656
48%
417 834
48%
453 906
48%
534 1068
47%
642 1284
47%
699 1398
47%
723 1446
47%
731 1462
47%
770 1540
47%
799 1598
47%
980 1960
47%
164 328
47%
182 364
47%
191 382
47%
195 390
47%
326 652
47%
327 654
47%
519 1038
46%
526 1052
46%
543 1086
46%
617 1234
46%
651 1302
46%
751 1502
46%
825 1650
46%
880 1760
46%
913 1826
46%
925 1850
46%
970 1940
46%
229 458
46%
257 514
46%
337 674
46%
361 722
46%
428 856
46%
449 898
46%
495 990
46%
527 1054
45%
529 1058
45%
556 1112
45%
635 1270
45%
823 1646
45%
841 1682
45%
899 1798
45%
914 1828
45%
932 1864
45%
172 344
45%
238 476
45%
239 478
45%
258 516
45%
262 524
45%
263 526
45%
329 658
45%
336 672
45%
427 854
45%
446 892
45%
448 896
45%
461 922
45%
536 1072
44%
643 1286
44%
645 1290
44%
732 1464
44%
745 1490
44%
780 1560
44%
790 1580
44%
931 1862
44%
271 542
44%
362 724
44%
436 872
44%
475 950
44%
528 1056
43%
634 1268
43%
655 1310
43%
690 1380
43%
716 1432
43%
717 1434
43%
724 1448
43%
741 1482
43%
818 1636
43%
824 1648
43%
831 1662
43%
832 1664
43%
842 1684
43%
844 1688
43%
916 1832
43%
951 1902
43%
960 1920
43%
192 384
43%
193 386
43%
197 394
43%
237 474
43%
247 494
43%
265 530
43%
298 596
43%
338 676
43%
346 692
43%
375 750
43%
538 1076
42%
546 1092
42%
547 1094
42%
557 1114
42%
619 1238
42%
652 1304
42%
718 1436
42%
719 1438
42%
735 1470
42%
744 1488
42%
816 1632
42%
817 1634
42%
851 1702
42%
870 1740
42%
924 1848
42%
933 1866
42%
944 1888
42%
184 368
42%
185 370
42%
259 518
42%
264 528
42%
281 562
42%
282 564
42%
295 590
42%
297 594
42%
349 698
42%
395 790
42%
456 912
42%
537 1074
41%
575 1150
41%
726 1452
41%
752 1504
41%
819 1638
41%
173 346
41%
174 348
41%
196 392
41%
272 544
41%
339 678
41%
347 694
41%
356 712
41%
447 894
41%
539 1078
40%
548 1096
40%
549 1098
40%
626 1252
40%
628 1256
40%
653 1306
40%
742 1484
40%
743 1486
40%
755 1510
40%
834 1668
40%
855 1710
40%
890 1780
40%
918 1836
40%
941 1882
40%
183 366
40%
194 388
40%
292 584
40%
348 696
40%
365 730
40%
438 876
40%
462 924
40%
464 928
40%
498 996
40%
571 1142
39%
595 1190
39%
654 1308
39%
734 1468
39%
753 1506
39%
835 1670
39%
852 1704
39%
919 1838
39%
923 1846
39%
955 1910
39%
166 332
39%
285 570
39%
357 714
39%
358 716
39%
359 718
39%
398 796
39%
439 878
39%
457 914
39%
463 926
39%
465 930
39%
481 962
39%
558 1116
38%
581 1162
38%
646 1292
38%
661 1322
38%
934 1868
38%
942 1884
38%
945 1890
38%
975 1950
38%
179 358
38%
274 548
38%
284 568
38%
291 582
38%
294 588
38%
296 592
38%
363 726
38%
364 728
38%
437 874
38%
482 964
38%
561 1122
37%
636 1272
37%
647 1294
37%
649 1298
37%
662 1324
37%
826 1652
37%
843 1686
37%
845 1690
37%
926 1852
37%
167 334
37%
168 336
37%
176 352
37%
273 546
37%
371 742
37%
372 744
37%
383 766
37%
458 916
37%
472 944
37%
484 968
37%
497 994
37%
564 1128
36%
565 1130
36%
598 1196
36%
627 1254
36%
727 1454
36%
828 1656
36%
836 1672
36%
853 1706
36%
917 1834
36%
991 1982
36%
994 1988
36%
169 338
36%
177 354
36%
187 374
36%
266 532
36%
267 534
36%
283 566
36%
381 762
36%
382 764
36%
391 782
36%
397 794
36%
491 982
36%
494 988
36%
496 992
36%
562 1124
35%
583 1166
35%
584 1168
35%
629 1258
35%
675 1350
35%
728 1456
35%
729 1458
35%
754 1508
35%
756 1512
35%
827 1654
35%
854 1708
35%
935 1870
35%
943 1886
35%
954 1908
35%
993 1986
35%
188 376
35%
276 552
35%
277 554
35%
293 586
35%
366 732
35%
374 748
35%
384 768
35%
396 792
35%
563 1126
34%
582 1164
34%
585 1170
34%
597 1194
34%
656 1312
34%
671 1342
34%
736 1472
34%
761 1522
34%
829 1658
34%
952 1904
34%
992 1984
34%
268 536
34%
373 746
34%
385 770
34%
392 784
34%
393 786
34%
394 788
34%
459 918
34%
471 942
34%
473 946
34%
483 966
34%
485 970
34%
492 984
34%
572 1144
33%
574 1148
33%
591 1182
33%
592 1184
33%
638 1276
33%
639 1278
33%
648 1296
33%
657 1314
33%
664 1328
33%
665 1330
33%
691 1382
33%
698 1396
33%
737 1474
33%
738 1476
33%
749 1498
33%
757 1514
33%
775 1550
33%
837 1674
33%
846 1692
33%
875 1750
33%
928 1856
33%
929 1858
33%
953 1906
33%
279 558
33%
559 1118
32%
658 1316
32%
746 1492
32%
771 1542
32%
798 1596
32%
847 1694
32%
849 1698
32%
856 1712
32%
882 1764
32%
936 1872
32%
949 1898
32%
985 1970
32%
178 356
32%
186 372
32%
467 934
32%
474 948
32%
493 986
32%
573 1146
31%
596 1192
31%
695 1390
31%
739 1478
31%
758 1516
31%
762 1524
31%
763 1526
31%
765 1530
31%
772 1544
31%
781 1562
31%
793 1586
31%
795 1590
31%
848 1696
31%
858 1716
31%
861 1722
31%
864 1728
31%
927 1854
31%
937 1874
31%
961 1922
31%
367 734
31%
376 752
31%
466 932
31%
478 956
31%
479 958
31%
566 1132
30%
593 1186
30%
594 1188
30%
637 1274
30%
663 1326
30%
673 1346
30%
681 1362
30%
682 1364
30%
684 1368
30%
748 1496
30%
764 1528
30%
773 1546
30%
796 1592
30%
797 1594
30%
838 1676
30%
857 1714
30%
862 1724
30%
871 1742
30%
872 1744
30%
881 1762
30%
895 1790
30%
946 1892
30%
947 1894
30%
189 378
30%
269 538
30%
288 576
30%
369 738
30%
377 754
30%
468 936
30%
476 952
30%
477 954
30%
488 976
30%
576 1152
29%
588 1176
29%
672 1344
29%
692 1384
29%
694 1388
29%
747 1494
29%
759 1518
29%
782 1564
29%
791 1582
29%
885 1770
29%
891 1782
29%
892 1784
29%
898 1796
29%
939 1878
29%
957 1914
29%
958 1916
29%
962 1924
29%
963 1926
29%
972 1944
29%
973 1946
29%
988 1976
29%
989 1978
29%
278 556
29%
286 572
29%
289 578
29%
378 756
29%
489 978
29%
567 1134
28%
579 1158
28%
587 1174
28%
659 1318
28%
666 1332
28%
685 1370
28%
693 1386
28%
696 1392
28%
697 1394
28%
784 1568
28%
792 1584
28%
794 1588
28%
839 1678
28%
874 1748
28%
894 1788
28%
897 1794
28%
938 1876
28%
948 1896
28%
956 1912
28%
981 1962
28%
982 1964
28%
983 1966
28%
287 574
28%
368 736
28%
379 758
28%
388 776
28%
389 778
28%
469 938
28%
568 1136
27%
674 1348
27%
783 1566
27%
865 1730
27%
866 1732
27%
873 1746
27%
883 1766
27%
884 1768
27%
896 1792
27%
965 1930
27%
971 1942
27%
386 772
27%
387 774
27%
578 1156
26%
589 1178
26%
683 1366
26%
766 1532
26%
785 1570
26%
787 1574
26%
788 1576
26%
859 1718
26%
863 1726
26%
869 1738
26%
876 1752
26%
964 1928
26%
974 1948
26%
984 1968
26%
486 972
26%
487 974
26%
577 1154
25%
586 1172
25%
676 1352
25%
679 1358
25%
688 1376
25%
768 1536
25%
774 1548
25%
779 1558
25%
868 1736
25%
893 1786
25%
959 1918
25%
986 1972
25%
987 1974
25%
569 1138
24%
667 1334
24%
668 1336
24%
767 1534
24%
776 1552
24%
777 1554
24%
786 1572
24%
887 1774
24%
889 1778
24%
966 1932
24%
969 1938
24%
977 1954
24%
669 1338
23%
686 1372
23%
689 1378
23%
867 1734
23%
877 1754
23%
886 1772
23%
888 1776
23%
976 1952
23%
677 1354
22%
678 1356
22%
778 1556
22%
789 1578
22%
967 1934
22%
968 1936
22%
978 1956
22%
687 1374
21%
979 1958
21%
769 1538
20%
878 1756
20%
879 1758
20%
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