Give and Take | Maths Grade 3 CBSE

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Six ideas about adding & taking away

Carrying, borrowing, and checking your answer. Tap each term to see what it means, with an example you can work out.

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Add the ones first, then the tens, then the hundreds.
If the ones add up to 10 or more, that makes a new ten — we carry it to the tens place.
Carrying is just regrouping: 10 ones become 1 ten.

Worked example. Add 27 + 35.

Ones: 7 + 5 = 12 → write 2, carry 1 ten. Tens: 2 + 3 + 1 = 6. Answer = 62.

Subtract the ones first. If the top ones are too few to take from, we borrow a ten.
One ten becomes 10 ones, so the ones grow by 10 and the tens drop by 1.
Then take away as usual, tens after ones.

Worked example. Subtract 54 − 28.

Ones: 4 is less than 8, borrow a ten → 14 − 8 = 6. Tens: 4 − 2 = 2. Answer = 26.

Words like “in all”, “altogether” or “more” often mean add.
Words like “left”, “how many more” or “take away” often mean subtract.
Check a subtraction by adding back: answer + number taken away should give the start.

Worked example. A jar had 80 sweets; 26 were eaten. How many are left? Then check.

80 − 26 = 54. Check: 54 + 26 = 80. Correct!

Common mix-up: remember to use the carried or borrowed ten. Forgetting it gives a wrong answer that is off by ten.

Where you’ll meet it

In games we add points across rounds, carrying when the total crosses a ten.

Taking the cost away from your savings, with borrowing, tells you how much is left.

Adding new stickers to your old ones, and checking the total, keeps your album count right.

Check yourself

Nine friendly questions to check that you can use adding and subtracting — with carrying and borrowing — not just the steps.

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