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Subtraction
4
Theme 2: Our Needs
Subtract.
am a learner
A
1. 2. 3. 4.
T
O
5
6
−
1
4
T
O
7
9
−
6
8
5. 6. 7. 8.
T
O
7
0
−
1
7
T
O
7
5
−
6
9. 10. 11. 12.
T
O
7
2
−
6
8
T
O
3
5
−
7
13. 14. 15. 16.
T
O
9
4
−
2
5
T
O
8
7
−
6
7
17. 18. 19. 20.
T
O
9
1
−
3
2
T
O
5
5
−
2
9
T
O
4
3
−
2
3
T
O
8
4
−
2
5
T
O
8
7
−
8
4
T
O
4
5
−
3
7
T
O
7
0
−
3
4
T
O
6
4
−
3
6
T
O
6
9
−
4
8
T
O
2
8
−
1
2
T
O
8
5
−
2
7
T
O
5
5
−
2
6