1 00:00:00,605 --> 00:00:07,560 We need tae calculate 9.005 minus 3.6, or we coud seeit aes 2 00:00:07,560 --> 00:00:13,067 9 n 5 thoosants minus 3 n 6 tents. 3 00:00:13,067 --> 00:00:15,800 Whaniver ye dae ae subtractin deceemals proablem, the maist important thing, 4 00:00:15,800 --> 00:00:18,063 n this is true whan ye'r eikin deceemals n aw, 5 00:00:18,078 --> 00:00:20,383 is that ye hae tae line the deceemals up. 6 00:00:20,383 --> 00:00:31,877 Sae 9.005 minus 3.6. 7 00:00:31,877 --> 00:00:35,283 Sae we'v lined the decemals up, n nou we'r readie tae subtract. 8 00:00:36,557 --> 00:00:38,077 Nou we can subtract. 9 00:00:38,077 --> 00:00:39,233 Sae we stert up here. 10 00:00:39,233 --> 00:00:41,533 We hae 5 minus nawthing. 11 00:00:41,533 --> 00:00:44,162 Ye coud imagen 3.6, or 3 n 6 tents. 12 00:00:44,162 --> 00:00:47,867 We coud eik twa zeros richt here, n it wid be the same thing aes 13 00:00:47,867 --> 00:00:52,110 3 n 600 thoosants, the same aes 6 tents. 14 00:00:52,110 --> 00:00:55,055 N whan ye luik at it that waa, ye'd say, "O.K., 5 minus 0 is nawthing, 15 00:00:55,055 --> 00:00:56,757 n ye juist sceeve ae 5 here". 16 00:00:56,757 --> 00:00:58,590 Or ye coud'v said, gif thaur's nawthin there, 17 00:00:58,590 --> 00:01:00,743 It woud hae been 5 minus nawthing is 5. 18 00:01:00,743 --> 00:01:04,147 Than ye hae 0 minus 0, n that's 0. 19 00:01:04,147 --> 00:01:07,600 N than ye hae ae 0 minus 6. 20 00:01:07,600 --> 00:01:09,970 N ye canna sutract 6 fae 0. 21 00:01:09,970 --> 00:01:12,678 Sae we need tae get sommit intae this space here, 22 00:01:12,678 --> 00:01:15,203 n whit we'r baseeclie gaun tae dae is tae regroop. 23 00:01:15,203 --> 00:01:20,234 We'r gaun tae tak ae 1 fae the 9, sae lat's dae that. 24 00:01:20,234 --> 00:01:24,654 Sae lats tak ae 1 fae the 9, sae it becomes aen 8. 25 00:01:24,654 --> 00:01:26,307 N we need tae dae sommit wi that 1. 26 00:01:26,307 --> 00:01:28,933 We'r gaun tae put it in the tents steid. 27 00:01:28,933 --> 00:01:32,147 Mynd ye, yin hale is the sam aes 10 tents. 28 00:01:32,147 --> 00:01:34,053 This is the tents steid. 29 00:01:34,053 --> 00:01:36,907 Sae than this wil become 10. 30 00:01:36,907 --> 00:01:38,972 Somtimes it's said that ye'r borroin the 1, 31 00:01:38,972 --> 00:01:41,200 but ye'r realie takin it, n ye'r realie takin 10 32 00:01:41,200 --> 00:01:43,560 fae the steid oan ye'r cair. 33 00:01:43,560 --> 00:01:46,812 Sae yin hale is 10 tents, we'r in the tents steid. 34 00:01:46,812 --> 00:01:49,348 Sae ye hae 10 minus 6. 35 00:01:49,348 --> 00:01:50,290 Lat me switch colours. 36 00:01:50,290 --> 00:01:52,433 10 minus 6 is 4. 37 00:01:52,433 --> 00:01:55,071 Ye hae ye'r deceemal richt there, n than ye hae 38 00:01:55,071 --> 00:01:58,313 8 minus 3 is 5. 39 00:01:58,313 --> 00:02:06,403 Sae 9.005 minus 3.6 is 5.405.