Page 61 - Enjoy with Maths Primer
P. 61
ADDITION BY FORWARD COUNTING
A D D I T I O N B Y F O R W A R D C O U N T I N G
20 + 5 = 25
20 21 22 23 24 25
1 2 3 4 5
17 + 3 = 20
17 18 19 20
1 2 3
Observe the above pattern and add.
3 + 6 = 4 + 4 =
12 + 1 = 20 + 4 =
22 + 3 = 32 + 7 =
40 + 6 = 51 + 8 =
61
Maths–Primer
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