2+3
  • Count the first group of birds. The first group has 2 birds.
  • Count the second group of birds. The second group has 3 birds.
  • To find the sum of 2 and 3, count all the birds together, like this:

1
2

3
4
5
2+3= 5
  • There are 5 birds, so 2 + 3 = 5.
1+4
  • Count the first group of birds. The first group has 1 bird.
  • Count the second group of birds. The second group has 4 birds.
  • To find the sum of 1 and 4, count all the birds together, like this:
1

2
3
4
5
1+4= 5
  • There are 5 birds, so 1 + 4 = 5.
1+1
  • Count the first group of birds. The first group has 1 bird.
  • Count the second group of birds. The second group has 1 bird.
  • To find the sum of 1 and 1, count all the birds together, like this:
1
2
1+1= 2
  • There are 2 birds, so 1 + 1 = 2.