9 – 8 =1
9–1=8
9
-
1
8
=
8
1
9–1=8
9–8=1
9–2=7
9–7=2
9–2
7 ==72
9–1=8
9–8=1
9–2=7
9–7=2
9–3=6
9–6=3
9–3
6=6
3
9–1=8
9–8=1
9–2=7
9–7=2
9–3=6
9–6=3
9–4=5
9 – 5= 4
9–5
4=4
5
9–1=8
9–8=1
9–2=7
9–7=2
9–3=6
9–6=3
9 – 4= 5
9–5=4
9-1=8
9-8=1
9-2=7
9-7=2
9-3=6
9-6=3
9-4=5
9-5=4
9 - 1 =8
9 - 8 =1
9 - 2 =7
9 - 7 =2
9 - 3 =6
9 - 6 =3
9 - 4 =5
9 - 5 =4
Baì tập
1.Tính
9
9
1
2
__
__
8
7
9
9
6 __
7
__
3
2
9
- 3
__
6
9
8
__
1
9
9
- 4 -5
__
__
5
4
9
9
- 9 0
__
__
9
0
2.Tính
8+ 1 = 9 7 + 2 = 9
6+ 3 = 9
9- 1 = 8 9 - 2 = 7
9- 3 = 6
9- 8 = 1 9 - 7 = 2
9- 6 = 3
3. Số ?
9
7 4
3 8
5
2 5 6 1 4
4. Viết phép tính thích hợp
9
-
4
=
5
9–1=8
9–8=1
9–2=7
9–7=2
9–3=6
9–6=3
9 – 4= 5
9–5=4