Statistics for Fast Math - Double That Number! in 30 Seconds

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General Stats
Answer Stats
Score Distribution
Your Score History

General Stats

This quiz has been taken 7,141 times
The average score is 7 of 16

Answer Stats

Number	Double	% Correct
5	10	100%
530	1060	100%
8	16	100%
84	168	100%
91	182	100%
220	440	100%
30	60	100%
35	70	100%
47	94	100%
810	1620	91%
104	208	91%
32	64	91%
512	1024	90%
520	1040	90%
60	120	90%
103	206	90%
125	250	90%
24	48	90%
28	56	90%
27	54	89%
29	58	89%
53	106	88%
622	1244	88%
643	1286	88%
900	1800	88%
14	28	88%
203	406	88%
25	50	88%
261	522	88%
37	74	88%
443	886	88%
551	1102	87%
7	14	86%
70	140	86%
85	170	86%
921	1842	86%
95	190	86%
97	194	86%
16	32	86%
240	480	86%
257	514	86%
302	604	86%
66	132	85%
72	144	85%
907	1814	85%
414	828	85%
44	88	85%
501	1002	83%
504	1008	83%
511	1022	83%
9	18	83%
99	198	83%
120	240	83%
190	380	83%
20	40	83%
23	46	83%
253	506	83%
350	700	83%
930	1860	82%
145	290	82%
326	652	82%
416	832	82%
522	1044	80%
55	110	80%
57	114	80%
59	118	80%
614	1228	80%
63	126	80%
701	1402	80%
715	1430	80%
77	154	80%
848	1696	80%
850	1700	80%
94	188	80%
113	226	80%
123	246	80%
133	266	80%
205	410	80%
344	688	80%
41	82	80%
143	286	79%
306	612	79%
719	1438	78%
76	152	78%
10	20	78%
130	260	78%
161	322	78%
19	38	78%
199	398	78%
21	42	78%
310	620	78%
404	808	78%
440	880	78%
450	900	78%
700	1400	77%
707	1414	77%
75	150	77%
81	162	77%
108	216	77%
403	806	77%
407	814	77%
532	1064	75%
6	12	75%
601	1202	75%
619	1238	75%
87	174	75%
912	1824	75%
109	218	75%
114	228	75%
157	314	75%
18	36	75%
188	376	75%
235	470	75%
280	560	75%
307	614	75%
370	740	75%
39	78	75%
432	864	75%
441	882	75%
232	464	74%
502	1004	73%
634	1268	73%
65	130	73%
68	136	73%
71	142	73%
950	1900	73%
213	426	73%
400	800	73%
422	844	73%
500	1000	71%
726	1452	71%
73	146	71%
800	1600	71%
814	1628	71%
90	180	71%
908	1816	71%
98	196	71%
111	222	71%
171	342	71%
204	408	71%
210	420	71%
215	430	71%
221	442	71%
223	446	71%
241	482	71%
301	602	71%
505	1010	70%
509	1018	70%
557	1114	70%
56	112	70%
913	1826	70%
922	1844	70%
110	220	70%
127	254	70%
144	288	70%
15	30	70%
175	350	70%
216	432	70%
225	450	70%
259	518	70%
311	622	70%
340	680	70%
54	108	69%
603	1206	69%
704	1408	69%
183	366	69%
40	80	69%
426	852	69%
460	920	69%
510	1020	67%
517	1034	67%
550	1100	67%
58	116	67%
590	1180	67%
61	122	67%
631	1262	67%
64	128	67%
644	1288	67%
655	1310	67%
67	134	67%
670	1340	67%
708	1416	67%
713	1426	67%
825	1650	67%
875	1750	67%
905	1810	67%
916	1832	67%
92	184	67%
940	1880	67%
945	1890	67%
953	1906	67%
100	200	67%
105	210	67%
106	212	67%
107	214	67%
11	22	67%
13	26	67%
192	384	67%
211	422	67%
214	428	67%
243	486	67%
250	500	67%
290	580	67%
31	62	67%
33	66	67%
360	720	67%
386	772	67%
401	802	67%
421	842	67%
424	848	67%
43	86	67%
444	888	67%
48	96	67%
200	400	65%
534	1068	64%
573	1146	64%
640	1280	64%
645	1290	64%
80	160	64%
826	1652	64%
86	172	64%
932	1864	64%
141	282	64%
160	320	64%
207	414	64%
229	458	64%
230	460	64%
246	492	64%
273	546	64%
300	600	64%
451	902	64%
46	92	64%
464	928	64%
480	960	64%
50	100	63%
508	1016	63%
604	1208	63%
650	1300	63%
660	1320	63%
737	1474	63%
771	1542	63%
792	1584	63%
830	1660	63%
102	204	63%
165	330	63%
179	358	63%
184	368	63%
296	592	63%
305	610	63%
317	634	63%
319	638	63%
365	730	63%
417	834	63%
430	860	63%
437	874	63%
542	1084	62%
543	1086	62%
616	1232	62%
824	1648	62%
140	280	62%
343	686	62%
431	862	62%
51	102	60%
524	1048	60%
554	1108	60%
630	1260	60%
648	1296	60%
717	1434	60%
718	1436	60%
730	1460	60%
740	1480	60%
750	1500	60%
768	1536	60%
78	156	60%
781	1562	60%
790	1580	60%
801	1602	60%
803	1606	60%
805	1610	60%
806	1612	60%
82	164	60%
823	1646	60%
840	1680	60%
852	1704	60%
901	1802	60%
915	1830	60%
929	1858	60%
938	1876	60%
135	270	60%
178	356	60%
271	542	60%
303	606	60%
313	626	60%
321	642	60%
333	666	60%
38	76	60%
397	794	60%
402	804	60%
405	810	60%
452	904	60%
463	926	60%
465	930	60%
49	98	60%
52	104	58%
537	1074	58%
611	1222	58%
820	1640	58%
934	1868	58%
132	264	58%
217	434	58%
222	444	58%
231	462	58%
304	608	58%
408	816	58%
412	824	58%
415	830	58%
503	1006	57%
536	1072	57%
602	1204	57%
605	1210	57%
620	1240	57%
621	1242	57%
624	1248	57%
690	1380	57%
716	1432	57%
799	1598	57%
853	1706	57%
911	1822	57%
960	1920	57%
118	236	57%
122	244	57%
146	292	57%
164	328	57%
170	340	57%
236	472	57%
244	488	57%
299	598	57%
373	746	57%
433	866	57%
506	1012	56%
531	1062	56%
544	1088	56%
552	1104	56%
613	1226	56%
625	1250	56%
654	1308	56%
680	1360	56%
705	1410	56%
807	1614	56%
821	1642	56%
841	1682	56%
93	186	56%
985	1970	56%
990	1980	56%
994	1988	56%
116	232	56%
136	272	56%
154	308	56%
22	44	56%
312	624	56%
320	640	56%
331	662	56%
338	676	56%
34	68	56%
347	694	56%
353	706	56%
442	884	56%
454	908	56%
456	912	56%
470	940	56%
525	1050	55%
541	1082	55%
757	1514	55%
822	1644	55%
904	1808	55%
174	348	55%
180	360	55%
182	364	55%
423	846	55%
445	890	55%
703	1406	54%
838	1676	54%
884	1768	54%
168	336	54%
189	378	54%
291	582	54%
191	382	53%
334	668	53%
516	1032	50%
518	1036	50%
535	1070	50%
549	1098	50%
553	1106	50%
575	1150	50%
606	1212	50%
610	1220	50%
615	1230	50%
62	124	50%
628	1256	50%
636	1272	50%
639	1278	50%
647	1294	50%
653	1306	50%
696	1392	50%
706	1412	50%
735	1470	50%
741	1482	50%
767	1534	50%
817	1634	50%
83	166	50%
835	1670	50%
837	1674	50%
844	1688	50%
854	1708	50%
857	1714	50%
858	1716	50%
860	1720	50%
862	1724	50%
890	1780	50%
899	1798	50%
910	1820	50%
942	1884	50%
951	1902	50%
961	1922	50%
115	230	50%
124	248	50%
131	262	50%
134	268	50%
172	344	50%
177	354	50%
193	386	50%
194	388	50%
208	416	50%
218	436	50%
219	438	50%
226	452	50%
233	466	50%
245	490	50%
26	52	50%
264	528	50%
279	558	50%
283	566	50%
284	568	50%
297	594	50%
315	630	50%
316	632	50%
318	636	50%
322	644	50%
352	704	50%
364	728	50%
381	762	50%
390	780	50%
410	820	50%
411	822	50%
413	826	50%
42	84	50%
425	850	50%
438	876	50%
45	90	50%
455	910	50%
471	942	50%
472	944	50%
487	974	50%
493	986	50%
514	1028	48%
973	1946	47%
249	498	47%
380	760	47%
560	1120	46%
593	1186	46%
633	1266	46%
664	1328	46%
709	1418	46%
526	1052	45%
561	1122	45%
720	1440	45%
724	1448	45%
744	1488	45%
836	1672	45%
867	1734	45%
873	1746	45%
88	176	45%
936	1872	45%
129	258	45%
142	284	45%
149	298	45%
156	312	45%
206	412	45%
234	468	45%
260	520	45%
266	532	45%
308	616	45%
384	768	45%
429	858	45%
576	1152	44%
642	1284	44%
659	1318	44%
662	1324	44%
684	1368	44%
714	1428	44%
746	1492	44%
776	1552	44%
780	1560	44%
828	1656	44%
923	1846	44%
935	1870	44%
943	1886	44%
96	192	44%
986	1972	44%
151	302	44%
152	304	44%
242	484	44%
258	516	44%
329	658	44%
379	758	44%
391	782	44%
436	872	44%
519	1038	43%
527	1054	43%
581	1162	43%
612	1224	43%
629	1258	43%
632	1264	43%
725	1450	43%
738	1476	43%
758	1516	43%
760	1520	43%
761	1522	43%
783	1566	43%
794	1588	43%
918	1836	43%
927	1854	43%
931	1862	43%
981	1962	43%
12	24	43%
121	242	43%
128	256	43%
150	300	43%
162	324	43%
167	334	43%
270	540	43%
288	576	43%
327	654	43%
332	664	43%
345	690	43%
351	702	43%
356	712	43%
376	752	43%
420	840	43%
635	1270	42%
646	1292	42%
679	1358	42%
849	1698	42%
880	1760	42%
909	1818	42%
101	202	42%
198	396	42%
227	454	42%
228	456	42%
248	496	42%
406	812	42%
409	818	42%
595	1190	41%
469	938	41%
507	1014	40%
591	1182	40%
594	1188	40%
607	1214	40%
641	1282	40%
649	1298	40%
711	1422	40%
739	1478	40%
754	1508	40%
755	1510	40%
772	1544	40%
788	1576	40%
809	1618	40%
811	1622	40%
813	1626	40%
827	1654	40%
845	1690	40%
861	1722	40%
870	1740	40%
906	1812	40%
933	1866	40%
956	1912	40%
980	1960	40%
155	310	40%
158	316	40%
163	326	40%
176	352	40%
274	548	40%
325	650	40%
349	698	40%
372	744	40%
434	868	40%
447	894	40%
448	896	40%
476	952	40%
482	964	40%
494	988	40%
533	1066	38%
661	1322	38%
663	1326	38%
675	1350	38%
689	1378	38%
692	1384	38%
722	1444	38%
734	1468	38%
74	148	38%
743	1486	38%
846	1692	38%
866	1732	38%
869	1738	38%
920	1840	38%
928	1856	38%
949	1898	38%
971	1942	38%
982	1964	38%
138	276	38%
169	338	38%
201	402	38%
209	418	38%
238	476	38%
239	478	38%
256	512	38%
272	544	38%
277	554	38%
278	556	38%
323	646	38%
341	682	38%
355	710	38%
357	714	38%
366	732	38%
399	798	38%
419	838	38%
485	970	38%
498	996	38%
499	998	38%
513	1026	36%
515	1030	36%
538	1076	36%
584	1168	36%
665	1330	36%
673	1346	36%
699	1398	36%
712	1424	36%
778	1556	36%
795	1590	36%
856	1712	36%
937	1874	36%
988	1976	36%
117	234	36%
185	370	36%
186	372	36%
254	508	36%
262	524	36%
294	588	36%
309	618	36%
367	734	36%
374	748	36%
418	836	36%
428	856	36%
467	934	36%
483	966	36%
521	1042	33%
528	1056	33%
540	1080	33%
547	1094	33%
556	1112	33%
558	1116	33%
570	1140	33%
586	1172	33%
600	1200	33%
618	1236	33%
626	1252	33%
637	1274	33%
669	1338	33%
671	1342	33%
682	1364	33%
69	138	33%
710	1420	33%
721	1442	33%
731	1462	33%
733	1466	33%
742	1484	33%
749	1498	33%
751	1502	33%
753	1506	33%
766	1532	33%
770	1540	33%
779	1558	33%
79	158	33%
797	1594	33%
802	1604	33%
818	1636	33%
832	1664	33%
872	1744	33%
882	1764	33%
891	1782	33%
894	1788	33%
897	1794	33%
902	1804	33%
947	1894	33%
962	1924	33%
984	1968	33%
991	1982	33%
137	274	33%
148	296	33%
153	306	33%
173	346	33%
181	362	33%
195	390	33%
196	392	33%
197	394	33%
202	404	33%
252	504	33%
263	526	33%
267	534	33%
275	550	33%
293	586	33%
339	678	33%
36	72	33%
361	722	33%
371	742	33%
382	764	33%
383	766	33%
393	786	33%
435	870	33%
453	906	33%
462	924	33%
491	982	33%
495	990	33%
497	994	33%
745	1490	31%
752	1504	31%
773	1546	31%
782	1564	31%
864	1728	31%
877	1754	31%
914	1828	31%
978	1956	31%
539	1078	30%
548	1096	30%
566	1132	30%
578	1156	30%
598	1196	30%
627	1254	30%
656	1312	30%
681	1362	30%
687	1374	30%
727	1454	30%
762	1524	30%
871	1742	30%
883	1766	30%
919	1838	30%
941	1882	30%
957	1914	30%
992	1984	30%
166	332	30%
287	574	30%
359	718	30%
475	950	30%
529	1058	29%
565	1130	29%
652	1304	29%
804	1608	29%
855	1710	29%
859	1718	29%
889	1778	29%
925	1850	29%
975	1950	29%
112	224	29%
119	238	29%
159	318	29%
212	424	29%
255	510	29%
328	656	29%
330	660	29%
358	716	29%
362	724	29%
363	726	29%
369	738	29%
385	770	29%
457	914	29%
466	932	29%
473	946	29%
479	958	29%
683	1366	28%
608	1216	27%
695	1390	27%
723	1446	27%
729	1458	27%
774	1548	27%
798	1596	27%
808	1616	27%
812	1624	27%
847	1694	27%
863	1726	27%
917	1834	27%
139	278	27%
281	562	27%
298	596	27%
348	696	27%
486	972	27%
546	1092	25%
583	1166	25%
638	1276	25%
677	1354	25%
686	1372	25%
748	1496	25%
785	1570	25%
816	1632	25%
886	1772	25%
892	1784	25%
895	1790	25%
898	1796	25%
946	1892	25%
958	1916	25%
959	1918	25%
972	1944	25%
987	1974	25%
17	34	25%
187	374	25%
224	448	25%
251	502	25%
295	590	25%
324	648	25%
336	672	25%
375	750	25%
439	878	25%
459	918	25%
461	922	25%
477	954	25%
481	962	25%
490	980	25%
492	984	25%
568	1136	23%
775	1550	23%
851	1702	23%
954	1908	23%
276	552	23%
337	674	23%
555	1110	22%
562	1124	22%
668	1336	22%
676	1352	22%
702	1404	22%
764	1528	22%
924	1848	22%
944	1888	22%
963	1926	22%
989	1978	22%
335	670	22%
389	778	22%
449	898	22%
496	992	22%
926	1852	21%
545	1090	20%
563	1126	20%
572	1144	20%
623	1246	20%
657	1314	20%
672	1344	20%
674	1348	20%
693	1386	20%
694	1388	20%
728	1456	20%
732	1464	20%
765	1530	20%
786	1572	20%
787	1574	20%
815	1630	20%
819	1638	20%
842	1684	20%
843	1686	20%
874	1748	20%
89	178	20%
964	1928	20%
967	1934	20%
126	252	20%
147	294	20%
269	538	20%
292	584	20%
314	628	20%
377	754	20%
392	784	20%
395	790	20%
446	892	20%
484	968	20%
796	1592	19%
286	572	19%
577	1154	18%
587	1174	18%
769	1538	18%
896	1792	18%
948	1896	18%
968	1936	18%
398	796	18%
474	948	18%
523	1046	17%
580	1160	17%
585	1170	17%
589	1178	17%
609	1218	17%
651	1302	17%
658	1316	17%
678	1356	17%
829	1658	17%
834	1668	17%
876	1752	17%
893	1786	17%
903	1806	17%
939	1878	17%
969	1938	17%
993	1986	17%
342	684	17%
427	854	17%
458	916	17%
478	956	17%
597	1194	15%
697	1394	15%
791	1582	15%
564	1128	14%
567	1134	14%
592	1184	14%
599	1198	14%
667	1334	14%
685	1370	14%
756	1512	14%
955	1910	14%
966	1932	14%
970	1940	14%
979	1958	14%
282	564	14%
394	788	14%
488	976	14%
489	978	14%
582	1164	13%
596	1192	13%
688	1376	13%
698	1396	13%
747	1494	13%
793	1586	13%
833	1666	13%
868	1736	13%
878	1756	13%
965	1930	13%
237	474	13%
285	570	13%
346	692	13%
368	736	13%
574	1148	11%
579	1158	11%
588	1176	11%
839	1678	11%
974	1948	11%
976	1952	11%
354	708	11%
387	774	11%
569	1138	10%
879	1758	10%
887	1774	10%
952	1904	10%
983	1966	10%
736	1472	9%
885	1770	9%
888	1776	9%
247	494	9%
378	756	9%
388	776	9%
666	1332	8%
784	1568	7%
865	1730	7%
977	1954	7%
559	1118	0%
571	1142	0%
617	1234	0%
691	1382	0%
759	1518	0%
763	1526	0%
777	1554	0%
789	1578	0%
831	1662	0%
881	1762	0%
265	530	0%
268	536	0%
289	578	0%
396	792	0%
468	936	0%