How to help your child with Class 2 Maths

In Class 2, Maths covers 11 units, starting with Numbers up to 100, Addition up to 99, Subtraction up to 99 and Equal Groups and Skip Counting.

This guide shows what is taught, the mistakes children commonly make and a short routine you can follow at home. Every unit links to a free picture lesson and quiz on MangoMindz.

What your child learns in Class 2 Maths

MangoMindz teaches Class 2 Maths in 11 units written to NCERT learning outcomes. Each unit has its own page with outcomes, key words and questions to ask at home.

🔢 Unit 1: Numbers up to 100: Learn about numbers up to 100: tens and ones, comparing, ordering, and odd-even!
➕ Unit 2: Addition up to 99: Add numbers up to 99 using bundles and the column method, with and without carrying.
➖ Unit 3: Subtraction up to 99: Take away numbers up to 99. Learn to borrow and check your answer by adding.
🔢 Unit 4: Equal Groups and Skip Counting: Count in 2s, 5s and 10s, and learn that times means equal groups.
🍎 Unit 5: Sharing Equally: Share things equally with friends and find how many each one gets.
🔷 Unit 6: Shapes and Lines: Learn about shapes, corners, and lines. Make pictures with shapes!
📏 Unit 7: Measuring Length: Measure things with your hands and feet, learn why we need a standard unit, and use a ruler to measure in centimetres.
⚖️ Unit 8: Heavy, Light, Full and Empty: Compare heavy and light things with a balance, and see which container holds more.
🕐 Unit 9: Clock and Calendar: Read the clock to the hour and half hour, and learn days, months, and calendar dates.
🪙 Unit 10: Money up to ₹100: Learn about coins and notes, make amounts in different ways, add prices, and get change when you shop!
🔷 Unit 11: Patterns and Picture Charts: Find patterns in shapes and numbers, and make picture charts to show what your friends like!

Common mistakes to watch for

These are mistakes children often make in this class, with a simple way to correct each one.

47 is 'four and seven' instead of 'forty-seven'.: Use the place value chart: 4 tens means 40, so 4 tens and 7 ones is forty-seven. (Numbers up to 100)
Adding tens first and then ones (e.g., 34+25 = 50+9 = 59) is okay, but they might forget to add the ones.: Always add ones first, then tens. Use the column method. (Addition up to 99)
Subtract the smaller number from the larger number in each column, even if it means swapping digits.: Always subtract the bottom digit from the top digit. If the top is too small, we need to borrow (next lesson). (Subtraction up to 99)
Skip counting by 5s: children say 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100: Start at 5 and add 5 each time. Use fingers: each hand has 5 fingers. (Equal Groups and Skip Counting)
The last number counted is the answer, not the number in each group.: Count the objects in one friend's pile after sharing. (Sharing Equally)
A circle has 1 side (the curved line).: A side is a straight line. A circle has no straight lines, so it has 0 sides and 0 corners. (Shapes and Lines)
A longer object always has more hand-spans than a shorter one, even if different people measure.: Explain that if your hand is bigger, you need fewer hand-spans. The number depends on the unit size. (Measuring Length)
A bigger object is always heavier.: Use the balance to check. A big balloon is lighter than a small stone. (Heavy, Light, Full and Empty)

A 10-minute daily routine

Short, regular practice is easier to keep up than a long weekend session. One routine that fits into a busy evening:

Minutes 1–2, warm-up: ask one quick question aloud (see the list below) and let your child explain how they got the answer.
Minutes 3–7, learn: do one short lesson part on MangoMindz: the picture lesson is read aloud, then a quick check.
Minutes 8–9, use real things: repeat the idea with coins, spoons, rotis, a ruler or the clock at home.
Minute 10, reflect: ask “What was tricky today?” and look at one common mistake from this guide together.

Try this at home

Numbers up to 100: Group a set of objects into tens and ones and count
Addition up to 99: Bundles: show 34 as 3 tens 4 ones; add 4 + 5 = 9 ones, then 3 + 2 = 5 tens; 34 + 25 = 59
Subtraction up to 99: Bundles to column: 57 – 23
Equal Groups and Skip Counting: Count the pairs of shoes: 2, 4, 6, 8, 10
Sharing Equally: Share 8 beads equally between 2 friends
Shapes and Lines: Count sides and corners of a given shape

Quick questions to ask aloud

Ask one a day. Let your child answer before you open the answer.

Riya has 3 bundles of 10 straws and 5 loose straws. How many straws does she have? (35 / 53 / 8)
Show answer
3 bundles of 10 is 30. 30 and 5 more is 35.
What is 34 + 25? (59 / 49 / 79 / 14)
Show answer
Add ones: 4+5=9. Add tens: 3+2=5. So 34+25=59.
What is 57 – 23?
Show answer
Subtract ones: 7 – 3 = 4. Subtract tens: 5 – 2 = 3. So 57 – 23 = 34.
Count the shoes in pairs: 👟👟 👟👟 👟👟. How many shoes are there? (6 / 3 / 5)
Show answer
There are 3 pairs. Each pair has 2 shoes. Count by 2s: 2, 4, 6. So 6 shoes.
Riya has 6 toffees. She shares them equally between 2 friends. How many toffees does each friend get? (2 / 3 / 4 / 6)
Show answer
Give one toffee to each friend. Do this again and again. At the end, each friend has 3 toffees.

Key words this year

tens: Groups of ten things. Ten ones make one ten.
ones: Single things that are not in a group of ten.
add: Put together to find the total.
sum: The answer when you add.
subtract: Take away. Find how many are left.
minus: The sign – that means take away.
equal groups: Groups that have the same number of things in each group.
skip counting: Counting by jumping over numbers, like 2, 4, 6, 8.
share: To give some to everyone so all get the same.
equally: Everyone gets the same amount.
side: A straight line that is part of a shape.
corner: The point where two sides meet.

More help

Frequently asked questions

What is taught in Class 2 Maths?

11 units: Numbers up to 100; Addition up to 99; Subtraction up to 99; Equal Groups and Skip Counting; Sharing Equally; Shapes and Lines; Measuring Length; Heavy, Light, Full and Empty; Clock and Calendar; Money up to ₹100; Patterns and Picture Charts.

What mistakes do Class 2 children make in Maths?

47 is 'four and seven' instead of 'forty-seven'. Fix: Use the place value chart: 4 tens means 40, so 4 tens and 7 ones is forty-seven. (Numbers up to 100) Adding tens first and then ones (e.g., 34+25 = 50+9 = 59) is okay, but they might forget to add the ones. Fix: Always add ones first, then tens. Use the column method. (Addition up to 99) Subtract the smaller number from the larger number in each column, even if it means swapping digits. Fix: Always subtract the bottom digit from the top digit. If the top is too small, we need to borrow (next lesson). (Subtraction up to 99)

How much time should a Class 2 child spend on Maths at home?

About 10 minutes on most days is a good start: a quick warm-up question, one short lesson part and a minute to talk about what was tricky. Short, regular practice is easier to keep up than long sessions.

Is there a free app for Class 2 Maths?

Yes. MangoMindz is free and has no ads. Every unit of Class 2 Maths has picture lessons read aloud, quick checks and a quiz, and parents can follow progress on a PIN-protected dashboard. No credit card is needed.

Start Class 2 Maths free