3rd Maths : Term 1 Unit 2 : Numbers
Numbers | Term 1 Chapter 2 | 3rd Maths
Read and write all three digit numbers and number names
We shall represent 100 in an abacus as shown below.
No beads in the ones place shows 0 ones.
No beads in the tens place shows 0 Tens.
1 bead in the hundred place shows 1 hundred.
The place value higher than tens place is hundreds place.
Hundred (or) 100 is the smallest three digit number.
Examples:
Activity 1
10 ones = 1 Ten
10 Tens = 1 Hundred
10 Hundreds = 1 Thousand.
Teacher’s note: Let the children explore to represent many 3 digit numbers by using math kit.
Read and write the numbers from 101 to 200.
Teacher’s Note: Teacher can give practice to children to write the numbers upto 1000.
The number name of the numeral 101 is written by adding one hundred with one as one hundred and one. For the numeral 199 it is written as one hundred and ninety nine.
Activity 2
Write the numerals for the given number names.
Activity 3
Write the number names for the following Numerals.
Activity 4
Form three digit numbers using each of the given numbers only once.
Place value of a numeral in the given number.
write the place value of the underlined digit in the given number.
I. find the numbers represented in the abacus by writing their place value.
3 – Hundreds
4 – Tens
2 – Ones
300 + 40 + 2
Ans: 342
4 – Hundreds
2 – Tens
1 – Ones
400 + 20 + 1
Ans: 421
1 – Hundreds
5 – Tens
3 – Ones
100 + 50 + 3
Ans: 153
II. Expand the given numbers into ones tens and hundreds
III. Write the simplified form of the number of the given expansions.
Skip counting starting from any given number.
Example:
1. 10 11 12 13 14 15 → Skip counted in ones
2. 62 64 66 68 70 72 → Skip counted in twos
complete the following by skip counting in 5s, 10s and 100s.
1. 250 255 260 265 270
2. 500 510 520 530 540
3. 100 200 300 400 500 600
