WEBVTT
00:00:03.240 --> 00:00:07.360
36 plus 24 equals what?
00:00:09.080 --> 00:00:16.640
Both of these numbers have two digits: a tens digit and a ones digit.
00:00:18.360 --> 00:00:29.440
36 has three tens and six ones and 24 has two tens and four ones.
00:00:30.720 --> 00:00:36.760
You may have noticed that six and four are a pair of numbers that make 10.
00:00:38.280 --> 00:00:46.160
If we add the four from 24 to the six from 36, we get 10.
00:00:47.920 --> 00:00:51.360
We can exchange this for a tens rod.
00:00:52.760 --> 00:00:58.760
Now, we have four tens plus two tens.
00:00:58.760 --> 00:01:06.160
Now, if we add together our four tens on our two tens, we will have six tens altogether.
00:01:07.320 --> 00:01:10.320
Six tens are 60.
00:01:10.320 --> 00:01:14.560
36 plus 24 equals 60.
00:01:15.920 --> 00:01:19.160
First, we added the six and four to make 10.
00:01:20.880 --> 00:01:23.640
30 and 20 is 50.
00:01:24.600 --> 00:01:27.960
50 plus 10 equals 60.
00:01:29.080 --> 00:01:33.560
36 plus 24 equals 60.