NCERT Solutions for Class 4th Maths Chapter 13 Multiples of 100 — In-text Questions

Book page 193 Updated on2026-09-19

Q1.

Now answer the following questions. Share your thoughts. 30 × 100 = ________ 40 × 100 = ________ 50 × 100 = ________ 24 × 100 = ________ 53 × 100 = ________ 19 × 100 = ________

Answer

Problem	Answer
30 × 100 = 30 Hundreds	3000
40 × 100 = 40 Hundreds	4000
50 × 100 = 50 Hundreds	5000
24 × 100 = 24 Hundreds	2400
53 × 100 = 53 Hundreds	5300
19 × 100 = 19 Hundreds	1900

Why it happens: Multiplying by 100 puts two zeros after the number, because each one becomes a hundred.

Q2.

We Know 80 × 100 = 8000. Find 80 × 50 = ________ and 40 × 50 = ______

Answer

50 is half of 100.
So 80 × 50 is half of 80 × 100.
Half of 8000 = 4000

40 is half of 80.
So 40 × 50 is half of 80 × 50.
Half of 4000 = 2000

Why it happens: If one number is halved, the answer is halved too — we are taking half as much each time.

Check it yourself: Check the other way: 40 × 50 = 40 × 5 Tens = 200 Tens = 2000. ✓

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