1
00:00:00,000 --> 00:00:01,748
Problem a.

2
00:00:03,033 --> 00:00:06,005
three hundred and seventy-five.

3
00:00:07,500 --> 00:00:10,400
minus one hundred and forty-two.

4
00:00:12,800 --> 00:00:16,252
Five minus two equals three.

5
00:00:17,800 --> 00:00:21,564
seventy minus forty equals thirty.

6
00:00:22,850 --> 00:00:27,406
three hundred minus one hundred equals two hundred.

7
00:00:28,700 --> 00:00:31,312
two hundred and thirty-three.

8
00:00:36,100 --> 00:00:37,896
Problem b.

9
00:00:39,183 --> 00:00:42,011
four hundred and eighty-six.

10
00:00:43,500 --> 00:00:46,472
minus two hundred and thirty-five.

11
00:00:48,866 --> 00:00:52,342
Six minus five equals one.

12
00:00:53,866 --> 00:00:57,438
eighty minus thirty equals fifty.

13
00:00:58,866 --> 00:01:03,374
four hundred minus two hundred equals two hundred.

14
00:01:04,666 --> 00:01:07,350
two hundred and fifty-one.

15
00:01:12,150 --> 00:01:13,994
Problem c.

16
00:01:15,283 --> 00:01:18,111
five hundred and seventy-nine.

17
00:01:19,600 --> 00:01:22,764
minus three hundred and forty-six.

18
00:01:25,150 --> 00:01:28,650
Nine minus six equals three.

19
00:01:30,150 --> 00:01:33,914
seventy minus forty equals thirty.

20
00:01:35,200 --> 00:01:39,780
five hundred minus three hundred equals two hundred.

21
00:01:41,066 --> 00:01:43,678
two hundred and thirty-three.

22
00:01:48,466 --> 00:01:50,286
Problem d.

23
00:01:51,583 --> 00:01:54,339
six hundred and forty-eight.

24
00:01:55,833 --> 00:01:58,973
minus four hundred and twenty-seven.

25
00:02:01,366 --> 00:02:04,746
Eight minus seven equals one.

26
00:02:06,366 --> 00:02:10,274
forty minus twenty equals twenty.

27
00:02:11,566 --> 00:02:16,098
six hundred minus four hundred equals two hundred.

28
00:02:17,383 --> 00:02:20,091
two hundred and twenty-one.

29
00:02:24,883 --> 00:02:26,655
Problem e.

30
00:02:27,950 --> 00:02:30,850
seven hundred and ninety-five.

31
00:02:32,350 --> 00:02:35,346
minus two hundred and sixty-three.

32
00:02:37,733 --> 00:02:41,209
Five minus three equals two.

33
00:02:42,733 --> 00:02:46,425
ninety minus sixty equals thirty.

34
00:02:47,733 --> 00:02:52,433
seven hundred minus two hundred equals five hundred.

35
00:02:53,716 --> 00:02:56,352
five hundred and thirty-two.

36
00:03:01,150 --> 00:03:02,994
Problem f.

37
00:03:04,283 --> 00:03:06,775
eight hundred and thirty-nine.

38
00:03:08,266 --> 00:03:11,046
minus five hundred and eighteen.

39
00:03:13,433 --> 00:03:16,789
Nine minus eight equals one.

40
00:03:18,433 --> 00:03:22,245
thirty minus ten equals twenty.

41
00:03:23,533 --> 00:03:28,041
eight hundred minus five hundred equals three hundred.

42
00:03:29,333 --> 00:03:32,137
three hundred and twenty-one.