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E:\Working\Focus_Learning\Math_Genius_1_(05-10-2023)\Open_Files\05_Chap_5\Chap_5
\ 11-Sep-2024 Bharat arora Proof-6 Reader’s Sign _______________________ Date __________
Numbers iN teNs aBaCus spikes
For a 2-digit number, we need an abacus Left Right
with two spikes. t O
The spike on the left is for tens place. Tens Ones
The spike on the right is for ones place. Place Place
Count, learn and write.
tens Ones
10 = 1 0
t O 10
1 branch of 10 leaves 1 ten = 10 Ten
tens Ones
20 = 2 0
t O 20
2 branches of 10 leaves each 2 tens = 20 Twenty
tens Ones
30 = 3 0
t O 30
3 branches of 10 leaves each 3 tens = 30 Thirty
tens Ones
40 = 4 0
t O 40
4 branches of 10 leaves each 4 tens = 40 Forty
tens Ones
50 = 5 0
t O 50
5 branches of 10 leaves each 5 tens = 50 Fifty
72 Mathematics-1
