• Number notation and place values (ones, tens, hundreds)

What will we learn today?

Whole NumbersNumbers up to 1000

Before we begin, let’s understand what is place values.

In the number 45,

tens ones

In the number 45,

tens ones

We can say, 45 = 4 tens 5 ones

If the number is greater,For example, 245

If the number is greater,For example, 245

4 tens 5 ones

We can see that there are 4 tens 5 ones.There is also a digit ‘2’, which stands for 2 hundreds.

If the number is greater,For example, 245

4 tens 5 ones

We can see that there are 4 tens 5 ones.There are also a digit ‘2’, which stands for 2 hundreds.

2 hundreds

So, in a 3 digit number,

There are

Hundreds place

Tens place

Ones place

Which number stands for 5 hundreds and 5 ones?

a) 55

b) 505

c) 550

d) 555

Which number stands for 5 hundreds and 5 ones?

a) 55

b) 505

c) 550

d) 555

tensoneshundreds

Which number stands for 5 hundreds and 5 ones?

a) 55

b) 505

c) 550

d) 555

tensoneshundreds

5 5

Fill in the hundreds and ones place.

Which number stands for 5 hundreds and 5 ones?

a) 55

b) 505

c) 550

d) 555

tensoneshundreds

5 5

Since there is no value in the tens place, we will put down as ‘0’.

0

Which number stands for 5 hundreds and 5 ones?

a) 55

b) 505

c) 550

d) 555

Ans: (b)

Here’s another example.

What is the smallest number that can be formed with the digits 5,4 and 8?

a) 545

b) 584

c) 458

d) 485

What is the smallest number that can be formed with the digits 5,4 and 8?

a) 545

b) 584

c) 458

d) 485 To form the smallest number, the first digit must be the smallest number.

tensoneshundreds

What is the smallest number that can be formed with the digits 5,4 and 8?

a) 545

b) 584

c) 458

d) 485 The smallest number is 4.

tensoneshundreds

4

What is the smallest number that can be formed with the digits 5,4 and 8?

a) 545

b) 584

c) 458

d) 485 The second digit should be the smaller number of the remaining numbers.

tensoneshundreds

4

What is the smallest number that can be formed with the digits 5,4 and 8?

a) 545

b) 584

c) 458

d) 485 5 is the smaller number of the remaining numbers.

tensoneshundreds

4 5

What is the smallest number that can be formed with the digits 5,4 and 8?

a) 545

b) 584

c) 458

d) 485 Place the last number in the ones place.

tensoneshundreds

4 5 8

What is the smallest number that can be formed with the digits 5,4 and 8?

a) 545

b) 584

c) 458

d) 485 Ans: (c)

Are you ready to try out the questions?