Class 2 Maths · Chapter 1 · Lesson 1

Place Value
to 100!

Let’s build numbers with tens and ones. You’ll learn what each digit means, make numbers with a picture model, and become a place-value detective.

Let’s learn Jump to practice ↓
See the groupsBuild numbers with pictures.
Know each digitTell tens from ones.
Show what you knowTry lots of question types.

Part 1 · Learn the idea

Numbers are made of groups

We can bundle 10 ones together to make 1 ten. Then we count the tens and the ones left over.

🔟 A ten is a bundle

When we have 10 ones, we can bundle them into 1 ten. Ten ones and one ten have the same value.

10 ones1 ten

🧩 The digits have places

A two-digit number has a tens place and a ones place. The digit’s place tells its value.

TensGroups of ten
OnesSingle units
ValueHow much a digit is worth

Let’s unpack 34

In 34, the 3 is in the tens place. It means 3 tens, or 30. The 4 is in the ones place. It means 4 ones, or 4.

4 ones
30 + 4 = 34

📣 Say it three ways

These all show the same number:

Standard form34
Word formthirty-four
Expanded form30 + 4

Part 2 · Make a number

Build it with tens and ones

Change the number and watch its tens and ones appear.

Try 26, 50, 83 or any number you like!

Let’s build 47

47 is 4 tens and 7 ones: 40 + 7.

Part 3 · Think like a mathematician

How to read a two-digit number

1

Look at the tens digit

In 62, the 6 is in the tens place. It stands for 6 groups of ten: 60.

2

Look at the ones digit

The 2 is in the ones place. It stands for 2 single ones.

3

Put the parts together

60 + 2 = 62. So 62 is 6 tens and 2 ones.

Watch out! 26 and 62 use the same digits, but the digits are in different places. 26 is 2 tens and 6 ones. 62 is 6 tens and 2 ones.

Part 4 · Your turn

Place-Value Practice Party! 🎉

Choose, type, compare and solve. Check each answer to see how you did.

Question 1 · Find the placeNot checked

In 36, which digit is in the tens place?

Choose one

Question 2 · Digit valueNot checked

What is the value of 5 in 58?

Choose one

Question 3 · Build a numberNot checked

What number has 4 tens and 7 ones?

Choose one

Question 4 · Expanded formNot checked

Which is another way to write 63?

Choose one

Question 5 · CompareNot checked

Choose the sign: 47 ___ 74

Choose one

Question 6 · Fill the gapNot checked

Complete the number sentence: 80 + ___ = 86

Question 7 · True or false?Not checked

29 is 2 tens and 9 ones.

Choose one

Question 8 · Put in orderNot checked

Type these numbers from smallest to largest: 25, 52, 45

Question 9 · Spot the mistakeNot checked

Mia says, “In 81, the 8 is worth 8.” Is Mia right?

Choose one

Question 10 · Word problemNot checked

A box has 3 bundles of ten pencils and 5 single pencils. How many pencils are there?

Question 11 · Make a numberNot checked

I have 6 tens and 2 ones. What number am I?

Question 12 · Challenge riddleNot checked

I have 9 tens and 0 ones. What number am I?

Choose one

Bonus round · More ways to practise

Worksheet-inspired challenges ✨

Try place-value charts, picture counting, number stories and digit-value questions.

Question 13 · Tens and ones chartNot checked

Write how many tens and ones are in 23.

Question 14 · Build from a chartNot checked

57 has ___ tens and ___ ones. Fill both spaces.

Question 15 · Write an addition sentenceNot checked

Write 57 in expanded form using tens + ones.

Question 16 · Button bundlesNot checked

Maya has 2 groups of ten buttons and 4 buttons left over. How many buttons does she have?

Question 17 · Stamp groupsNot checked

Ben has 60 stamps. He puts 10 stamps in each group. How many groups does he make?

Question 18 · Count the applesNot checked

There are 2 full tens of apples and 4 extra apples. How many apples are there?

Question 19 · Count the bananasNot checked

The picture has 2 groups of ten bananas and 3 single bananas. How many bananas?

Question 20 · Cube modelNot checked

Seven tens rods and five single cubes show which number?

Choose one

Question 21 · Circle the digit’s valueNot checked

In 83, what is the value of the underlined digit: 83?

Choose one

Question 22 · Bookshop storyNot checked

A bookshop has 43 books. There are 34 children. Is there one book for each child?

Choose one

Learning grows with practice. If an answer is tricky, look back at the tens-and-ones model and have another go.

0 of 22 correct

You did some great thinking!

Place-value explorer badge 🏅

You can read and build numbers to 100 by finding the tens and ones. Tell someone one new thing you learned today!

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