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Chapter 5 of 22
Important Questions

Operations on Larger Numbers

ICSE · Class 5 · Mathematics

Most important questions from Operations on Larger Numbers for ICSE Class 5 Mathematics board exam 2026. MCQs, short answer, and long answer questions with marks.

44 questions25 flashcards5 concepts

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44 Questions·
multiple choice

Sample Questions

1multiple choice
1 marks

Find the product: 42,616 × 35.

Show answer

14,91,560

Step 1: Multiply 42,616 × 5 = 2,13,080. Step 2: Multiply 42,616 × 30 = 12,78,480. Step 3: Add the two partial products: 2,13,080 + 12,78,480. Step 4: 2,13,080 + 12,78,480 = 14,91,560. Step 5: Verify by estimation: 40,000 × 35 = 14,00,000, which is close to 14,91,560 ✓. Forgetting to add a zero when multiplying by 30 is a very common mistake.

2multiple choice
1 marks

419,634 ÷ 38. What is the quotient?

Show answer

11,043

Step 1: Divisor is 38 (2 digits), so take first 2 digits: 41. 41 ÷ 38 = 1 (write 1 in quotient). Step 2: 41 − 38 = 3. Bring down 9 → 39. 39 ÷ 38 = 1 (write 1). Step 3: 39 − 38 = 1. Bring down 6 → 16. 38 > 16, so write 0 in quotient. Step 4: Bring down 3 → 163. 163 ÷ 38 ≈ 4 (38×4=152). Write 4. Step 5: 163 − 152 = 11. Bring down 4 → 114. 114 ÷ 38 = 3 (38×3=114). Quotient = 11,043, Remainder = 0. ✓

3multiple choice
1 marks

A water tank holds 15,680 litres. What is the total water in 125 such tanks?

Show answer

19,60,000 litres

Step 1: Multiply 15,680 × 125. Step 2: 15,680 × 100 = 15,68,000. Step 3: 15,680 × 25 = 15,680 × 20 + 15,680 × 5 = 3,13,600 + 78,400 = 3,92,000. Step 4: Add: 15,68,000 + 3,92,000 = 19,60,000. Step 5: Verify: 15,680 × 125 = 15,680 × (500÷4) = 78,40,000÷4 = 19,60,000 ✓.

4multiple choice
1 marks

In a division problem, the dividend is 36,64,8067, the quotient is 38,863 and the remainder is 258. What is the divisor?

Show answer

943

Step 1: Use the relationship: Dividend = Divisor × Quotient + Remainder. Step 2: So, Divisor × Quotient = Dividend − Remainder = 3,66,48,067 − 258 = 3,66,47,809. Step 3: Divisor = 3,66,47,809 ÷ 38,863. Step 4: 38,863 × 943 = 38,863 × 900 + 38,863 × 43 = 3,49,76,700 + 16,71,109 = 3,66,47,809 ✓. Step 5: So divisor = 943. This tests the division relationship formula.

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Frequently Asked Questions

What are the important topics in Operations on Larger Numbers for ICSE Class 5 Mathematics?
Key topics in Operations on Larger Numbers include Place value breakdown of a large number showing each position from ones to crores, Step-by-step flowchart for adding larger numbers with carry-over logic, Sequential process of handling carries through different columns during addition. These are the concepts ICSE Class 5 examiners draw on most — study them first, then practise related questions.
How to score full marks in Operations on Larger Numbers — ICSE Class 5 Mathematics?
Understand the core concepts first, then work through the 44 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Operations on Larger Numbers?
There are 44 practice questions available for Operations on Larger Numbers. These cover multiple question types including MCQs, short answer, and long answer questions.

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