Class 3 Maths — 22 skills

3-digit place value

352 = 3 hundreds + 5 tens + 2 ones = 300 + 50 + 2.

Builds on: Tens and ones

Try it:

1. What is the value of the tens digit in 670? → 70
2. Which number is 800 + 0 + 9 ? → 809

Compare and order 3-digit numbers

Compare hundreds first, then tens, then ones.

Builds on: 3-digit place value, Compare and order 2-digit numbers

Try it:

1. Choose the sign: 723 ☐ 733 → <
2. Choose the sign: 684 ☐ 683 → >

Round to the nearest 10

Look at the ones digit: 0–4 round down, 5–9 round up.

Builds on: 3-digit place value

Try it:

1. Round 185 to the nearest 10. → 190
2. Round 434 to the nearest 10. → 430

3-digit addition

Add ones, tens, then hundreds — carry whenever a column makes 10 or more.

Builds on: 2-digit addition with carrying, 3-digit place value

Try it:

1. 206 + 748 = ? → 954
2. 400 + 447 = ? → 847

3-digit subtraction

Subtract ones, tens, then hundreds — borrow when the top digit is smaller.

Builds on: 2-digit subtraction with borrowing, 3-digit place value

Try it:

1. 640 − 100 = ? → 540
2. 251 − 113 = ? → 138

Times tables 2–10

Use facts you know: 6 × 7 = 5 × 7 + 7 = 35 + 7 = 42.

Builds on: Tables of 2, 5 and 10

Try it:

1. 10 × 10 = ? → 100
2. 2 × 7 = ? → 14

2-digit × 1-digit

Split the big number into tens and ones: 23 × 4 = 20 × 4 + 3 × 4 = 80 + 12 = 92.

Builds on: Times tables 2–10

Try it:

1. 38 × 7 = ? → 266
2. 14 × 8 = ? → 112

Division as equal sharing

Share equally: 12 ÷ 3 asks "3 times what is 12?" → 4.

Builds on: Times tables 2–10

Try it:

1. 40 ÷ 4 = ? → 10
2. 20 cookies are shared equally among 4 children. How many does each child get? → 5

Fractions of a shape

The bottom number says how many equal parts; the top says how many are coloured.

Builds on: Halves and quarters

Fraction of a number

To find 1/4 of 20, share 20 into 4 equal parts: 20 ÷ 4 = 5.

Builds on: Fractions of a shape, Division as equal sharing

Try it:

1. What is 1/3 of 27? → 9
2. What is 1/2 of 18? → 9

Money: totals and change

Change = money given − cost. Count up from the cost to check.

Builds on: Money up to ₹100, 3-digit subtraction

Try it:

1. Anaya buys a book for ₹15 and pays with ₹100. How much change? → 85
2. Vihaan buys a book for ₹65 and pays with ₹100. How much change? → 35

Time to 5 minutes

Each number on the clock is 5 minutes for the long hand: on 4 → 20 minutes.

Builds on: Read o'clock and half past

Months and calendar

30 days: April, June, September, November. February has 28 (29 in a leap year). The rest have 31.

Builds on: Days of the week

Try it:

1. How many days are in May ? → 31
2. How many days are in November ? → 30

Metres and centimetres

1 m = 100 cm. To change m to cm, multiply by 100.

Builds on: Measure length in cm, Times tables 2–10

Try it:

1. 9 m 90 cm = ? cm → 990
2. 1 m = ? cm → 100

Kilograms and grams

1 kg = 1000 g. Half a kilogram is 500 g.

Builds on: Metres and centimetres

Try it:

1. Which is heavier: 1 kg of cotton or 900 g of iron? → 1 kg of cotton
2. 6 kg = ? g → 6000

Perimeter

Perimeter is the distance all the way round: add every side.

Builds on: Sides and corners, 3-digit addition

Read a bar graph

Find the top of the bar, then read across to the scale.

Builds on: Read a pictograph

Number patterns and rules

Find the rule by looking at the jump between neighbours.

Builds on: Skip counting, 3-digit addition

Two-step word problems

Break it into steps: what do you find first? Then use that answer for the second step.

Builds on: One-step word problems, 2-digit × 1-digit

Try it:

1. Arjun buys 3 pens at ₹11 each and a bag for ₹20. How much is spent in total? → 53
2. Rohan buys 4 pens at ₹13 each and a bag for ₹21. How much is spent in total? → 73

Work backwards

Start from the end and undo each step in reverse order: undo “double” by halving, undo “add 7” by subtracting 7.

Builds on: One-step word problems

Try it:

1. I think of a number. I add 7, then double it, and get 18. What was my number? → 2
2. I think of a number. I add 3, then double it, and get 28. What was my number? → 11

Logical order

Write the facts as a line from biggest to smallest, adding one clue at a time.

Builds on: More, less and equal

Try it:

1. Dia is taller than Ben. Ben is taller than Chetan. Who is the shortest ? → Chetan
2. Ben is older than Asha. Asha is older than Chetan. Who is the oldest ? → Ben

Odd one out

Look for a rule that fits all but one: even/odd, a times table, digit sums…

Builds on: Skip counting

Try it:

1. Which number is the odd one out ? → 25