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Transcript
00:00Compare two-digit numbers
00:06In this lesson, we will learn how to...
00:09Compare two-digit numbers
00:12Let's start learning about the comparison symbols for greater than, less than, and equal to.
00:19Look, we use the mouth of an alligator to represent the symbols.
00:24His mouth is always open to the larger number.
00:27Let's see.
00:29Let's compare two numbers, 32 and 14.
00:33When comparing two-digit numbers, we will compare the 10s first.
00:37If the 10s are the same, then we compare the 1s.
00:41We represent these two numbers in 10s and 1s like this.
00:45If we look at the 10s, 3 is greater than 1, so we can then say that 32 is greater than 14.
00:54We can also use the symbol to show this.
00:57The alligator's mouth opens to the larger number like this.
01:01It shows that 32 is greater than 14.
01:05Or, 14 is smaller than 32.
01:09This time, we are comparing 21 and 26.
01:14Let's compare the 10s first.
01:17Oh, the 10s are the same.
01:20Then we look at the 1s.
01:221 is less than 6.
01:25Therefore, 21 is less than 26.
01:29Now, the alligator's mouth opens to the larger number like this.
01:34It shows that 21 is less than 26.
01:38Or, 26 is greater than 21.
01:42Now, let's see another example.
01:45Can you compare these two numbers?
01:47When comparing the 10s, we find that they are the same, 5 and 5.
01:53Now, look at the 1s.
01:56OK, the 1s are also the same, 8 and 8.
02:01Thus, we can say that 58 is equal to 58.
02:06This time, the alligator does not know which number to eat, so his mouth looks like this.
02:13It means that 58 is equal to 58.
02:18Ready? Let's practice.
02:23Which number is larger?
02:3660.
02:37Bravo!
02:42Which number is smaller?
02:5351.
02:54Well done!
02:59Which number is larger?
03:0758.
03:08Fantastic!
03:13Which number is larger?
03:2038.
03:21Super duper!
03:27Touch the hat with the larger number.
03:32That's it!
03:37Touch the balloon with the larger number.
03:42That's it!
03:48Super!
03:57Which number is the largest?
04:0847.
04:09Great!
04:13Which number is the smallest?
04:2037.
04:21Super!
04:26Which number is the largest?
04:3877.
04:39Awesome!
04:43Which number is the largest?
04:5355.
04:54Fantastic!
05:00Compare numbers. Drag the signs to the correct places.
05:13Good thinking!
05:19Compare numbers. Drag the signs to the correct places.
05:35Which number is the smallest?
05:4357.
05:44Super!
05:45Which number is the smallest?
05:56Compare numbers. Drag the signs to the correct places.
06:13Which number is the smallest?
06:21That's it!
06:26Compare numbers. Drag the signs to the correct places.
06:38Good going!
06:43Which number is the largest?
06:5155.
06:52Cool!
06:57Compare numbers. Drag the signs to the correct places.
07:13Awesome!
07:20Which number is larger?
07:2673.
07:27Excellent!
07:32Compare numbers. Drag the signs to the correct places.
07:43Good job!
07:49Which number is the largest?
07:5776.
07:58Great!
08:03Compare numbers. Drag the signs to the correct places.
08:13Which number is the smallest?
08:2252.
08:23Cool!
08:31Hooray!