4 + 6 = 10
3 + 7 = 10
2 + 8 = 10
8 + 2 = 10
7 + 3 = 10
6 + 4 = 10
5 + 5 = 10
5 + 5 = 10
Trang 28 + 2 = 10 2 + 8 = 10
5 + 5 = 10
Trang 38 + 2 = 10 2 + 8 = 10
5 + 5 = 10
Trang 4Bµi 1: TÝnh
a)
1 5
6 7
2 9
9 5
4 3
8
1
Trang 5Bµi 1: TÝnh
b)
1 + 9
=
9 + 1
=
9 – 1 =
2 + 8
=
8 + 2
=
8 - 2 =
3 + 7
=
7 + 3
=
7 - 3 =
4 + 6
=
6 + 4
=
3 - 3
=
10 10 8
10 10 6
10 10 4
10 10 0
Trang 6Bµi 2: Sè ?
7
7
6
4
8
9
10
Trang 7Bµi 3: ViÕt phÐp tÝnh thÝch hîp
4 + 6 = 10
6 + 4 = 10