Somerville School, Noida Mathematics Worksheet – 2 (2020-2021) Class-III Ex.1 Complete the counting Th H T O 9 9 1 Counting Numbers 999 – 1050 Th H T O Th H T O Th H T O Th H T O Th H T O 1 1 1 1 0 3 1 1 0 4 1 1 0 3 5 1 0 4 8 0 0 1 0 1 1 0 2 1 9 9 2 9 9 3 1 9 9 9 1 0 0 0 1 1 0 2 6 0 1 9 0 1 0 Home Assignment – Write numbers from a) 1081 – 1100 b) 1101 – 1120 c) 1951 – 1980 d) 3681 – 3710 Numbers Beyond 999 The greatest 3- digit number is 999. 999.If we add 1 to 999, we get 1000. Th H T 0 9 9 9 + 1000 is the smallest 4-digit digit number. We read it as one thousand. 1 1 0 0 On the abacus 1000 is represented as Th 9 9 9 H T + O 1 = Th H T O 1 0 0 0 Ex1. Show the following numbers on the abacus using rings .One has been done for you. a) b) Th H T O 2 0 0 Two thousand Th 0 H T 4 0 0 Four thousand c) O 0 d) Th H T 0 6 0 0 Six thousand 0 Th H T 9 0 0 Nine thousand 0 0 0 Ex.2 – Show the following numbers on the abacus. The first one has been done for you – Remember- We do not leave gaps between the rings or circles a) b) Th H T 0 Th 3105 H T 0 T 0 5462 c) d) Th H T Th 0 7458 H 2269 Ex3. Read the abacus and write the number- Th H T 0 __________________ Th H T 0 ______________ Th H T 0 ______________