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Problem a.

2
00:00:03,033 --> 00:00:04,949
forty-five.

3
00:00:07,333 --> 00:00:09,609
Plus twenty-eight.

4
00:00:13,300 --> 00:00:17,160
five plus eight equals thirteen.

5
00:00:18,650 --> 00:00:22,462
forty plus twenty equals sixty.

6
00:00:23,950 --> 00:00:25,914
Carry the ten.

7
00:00:28,350 --> 00:00:32,282
sixty plus ten equals seventy.

8
00:00:33,766 --> 00:00:35,850
seventy-three.

9
00:00:37,750 --> 00:00:39,546
Problem b.

10
00:00:40,833 --> 00:00:42,893
fifty-six.

11
00:00:45,283 --> 00:00:47,487
Minus thirty-eight.

12
00:00:51,183 --> 00:00:53,315
Borrow one ten.

13
00:00:54,800 --> 00:00:58,132
ten minus eight equals two.

14
00:00:59,616 --> 00:01:03,116
two plus six equals eight.

15
00:01:04,616 --> 00:01:08,140
forty minus thirty equals ten.

16
00:01:09,633 --> 00:01:11,381
eighteen.

17
00:01:13,266 --> 00:01:15,110
Problem c.

18
00:01:16,400 --> 00:01:18,460
seventy-two.

19
00:01:20,850 --> 00:01:23,150
Minus forty-five.

20
00:01:26,850 --> 00:01:28,982
Borrow one ten.

21
00:01:30,466 --> 00:01:33,990
ten minus five equals five.

22
00:01:35,483 --> 00:01:38,959
five plus two equals seven.

23
00:01:40,450 --> 00:01:44,334
sixty minus forty equals twenty.

24
00:01:45,833 --> 00:01:47,893
twenty-seven.

25
00:01:49,783 --> 00:01:51,603
Problem d.

26
00:01:52,900 --> 00:01:54,648
three.

27
00:01:57,033 --> 00:01:58,925
Plus five.

28
00:02:02,616 --> 00:02:06,212
three plus five equals eight.

29
00:02:07,700 --> 00:02:09,448
eight.

30
00:02:11,333 --> 00:02:13,105
Problem e.

31
00:02:14,400 --> 00:02:16,148
ninety.

32
00:02:18,533 --> 00:02:20,761
Minus thirty-five.

33
00:02:24,450 --> 00:02:26,582
Borrow one ten.

34
00:02:28,066 --> 00:02:31,590
ten minus five equals five.

35
00:02:33,083 --> 00:02:36,727
five plus zero equals five.

36
00:02:38,216 --> 00:02:41,788
eighty minus thirty equals fifty.

37
00:02:43,283 --> 00:02:45,223
fifty-five.

38
00:02:47,116 --> 00:02:48,960
Problem f.

39
00:02:50,250 --> 00:02:52,190
sixty-four.

40
00:02:54,583 --> 00:02:56,859
Plus twenty-eight.

41
00:03:00,550 --> 00:03:04,122
four plus eight equals twelve.

42
00:03:05,616 --> 00:03:09,428
sixty plus twenty equals eighty.

43
00:03:10,916 --> 00:03:12,880
Carry the ten.

44
00:03:15,316 --> 00:03:18,912
eighty plus ten equals ninety.

45
00:03:20,400 --> 00:03:22,292
ninety-two.