1. KEMAHIRAN : MENAMBAH TIGA NOMBOR
A) TAMBAH : 3D + 1D+ 1D
632+4+3= 831+4+4= 326+1+3=
B) TAMBAH : 3D + 2D + 1D
632+41+3= 831+42+4= 326+42+2=
C) TAMBAH : 3D + 2D + 2D
543+40+12= 831+51+16= 260+18+31=
D) TAMBAH : 3D+ 3D+3D
704+325+313= 520+335+127= 206+352+435=

2. Kemahiran : Menambah sebarang tiga nombor hingga tiga digit .
Arahan : Selesaikan.
2 0 1
1 2
+ 1 3 6
3 5 1
1 3
+ 4
3
1 6
+ 4 3 0
4 0 5
2 3
+ 7 1
2 5
3
+ 7 0 1
1 2
8 1
+6 0 0
1 6 7
2 0 0
+1 3 1
1 7
2
+ 2 8 0
2 4
1 3
+ 3 2 1
3 0 6
2 1
+ 1 7 2
6
4 1
+ 5 0 2
7 2 4
1 0 5
+ 1 3 0