Addition & Subtraction — Chapter Test | Class 3 IMO

Q1

Fill the blank: 360 + ___ = 500 ?

500 − 360 = 140.

Q2

If 25 + 15 = 40, then 250 + 150 = ___ ?

The same digits with one extra zero give 400.

Q3

Estimate 198 + 203 to the nearest hundred.

198 ≈ 200 and 203 ≈ 200, so 200 + 200 = 400.

Q4

Which sum is NOT equal to 600?

400 + 250 = 650; the other three equal 600.

Q5

Add: 3,456 + 2,341 = ?

No carrying: 5,797.

Q6

Add: 4,758 + 1,265 = ?

With carrying at each column, the sum is 6,023.

Q7

Subtract: 805 − 369 = ?

With borrowing, 805 − 369 = 436.

Q8

Subtract: 6,004 − 2,178 = ?

6,004 − 2,178 = 3,826 (check: 3,826 + 2,178 = 6,004).

Q9

Round 1,267 to the nearest hundred.

The tens digit 6 is 5 or more, so it rounds up to 1,300.

Q10

A library had 3,450 books and bought 1,275 more. How many books now?

3,450 + 1,275 = 4,725 books.

Q11

Amit had ₹5,000 and spent ₹3,650. How much is left?

5,000 − 3,650 = ₹1,350.

Q12

Two villages have 2,345 and 1,890 people. What is the total population?

2,345 + 1,890 = 4,235 people.

Q13

A number added to 1,250 gives 4,000. What is the number?

4,000 − 1,250 = 2,750.

Q14

A shopkeeper had ₹5,000. He spent ₹1,250 on rice and ₹1,800 on oil. How much is left?

1,250 + 1,800 = 3,050; 5,000 − 3,050 = ₹1,950.