Class 2 Maths — 17 skills

Tens and ones

A two-digit number is tens and ones: 47 = 4 tens (40) + 7 ones.

Builds on: Count objects up to 20, Before, after and between

Try it:

1. How many tens are in 98? → 9
2. How many tens are in 39? → 3

Number names to 100

Say the tens word, then the ones word: 64 → sixty-four.

Builds on: Tens and ones

Try it:

1. Which is the number name for 80 ? → eighty
2. Which is the number name for 21 ? → twenty-one

Compare and order 2-digit numbers

Compare the tens first. If the tens are equal, compare the ones.

Builds on: Tens and ones, More, less and equal

Try it:

1. Which is the biggest ? → 90
2. Which is the smallest ? → 12

Skip counting

Skip counting adds the same jump each time: 5, 10, 15, 20…

Builds on: Continue a pattern, Add within 20

Sides and corners

Count each straight side once. Corners are where two sides meet — the same number as sides.

Builds on: Name flat shapes

2-digit addition (no carrying)

Add the ones, then add the tens.

Builds on: Tens and ones, Add within 20

Try it:

1. 60 + 22 = ? → 82
2. 61 + 32 = ? → 93

2-digit addition with carrying

If the ones make 10 or more, carry 1 ten over to the tens.

Builds on: 2-digit addition (no carrying)

Try it:

1. 35 + 15 = ? → 50
2. 17 + 39 = ? → 56

2-digit subtraction (no borrowing)

Subtract the ones, then the tens.

Builds on: Tens and ones, Subtract within 20

Try it:

1. 44 − 14 = ? → 30
2. 24 − 11 = ? → 13

2-digit subtraction with borrowing

If the top ones digit is smaller, borrow 1 ten (10 ones) from the tens.

Builds on: 2-digit subtraction (no borrowing)

Try it:

1. 73 − 15 = ? → 58
2. 60 − 52 = ? → 8

Multiplication as equal groups

3 groups of 4 is 4 + 4 + 4 = 12, written 3 × 4.

Builds on: Add within 20

Tables of 2, 5 and 10

Skip count to find the answer: 5 × 4 → 5, 10, 15, 20.

Builds on: Multiplication as equal groups, Skip counting

Try it:

1. 5 × 4 = ? → 20
2. 5 × 3 = ? → 15

Money up to ₹100

Add notes first (biggest to smallest), then coins.

Builds on: Count coins and notes to ₹20, 2-digit addition (no carrying)

Read o'clock and half past

Short hand = hours. Long hand on 12 → o'clock; on 6 → half past.

Builds on: Count objects up to 20

Measure length in cm

Line the object up with 0 on the ruler and read where it ends.

Builds on: Longer and shorter

Halves and quarters

A half is 1 of 2 equal parts. A quarter is 1 of 4 equal parts.

Builds on: Sides and corners

Read a pictograph

Each picture stands for a number of things. Count the pictures in a row.

Builds on: Count with tally marks

One-step word problems

Read carefully: "in all / altogether" usually means add; "left / how many more" usually means subtract.

Builds on: 2-digit addition (no carrying), 2-digit subtraction (no borrowing)

Try it:

1. Zara has 50 stars. A friend gives 16 more. How many stars does Zara have in all ? → 66
2. Ishaan had 36 balloons and gave away 14. How many are left ? → 22