Class 7 Mathematics Chapter 1: Large Numbers Around Us — practice questions with answers
Free practice for Class 7 Mathematics, Chapter 1: Large Numbers Around Us. Try the solved questions below, then take a free test with instant marking and explanations.
34 questions7 easy, 20 medium, 7 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. Which is the smallest 6-digit number?
- 1,00,000
- 99,999
- 10,000
- 10,00,000
Show answer
Answer: A. 1,00,000
Why: The largest 5-digit number is 99,999; adding 1 gives the smallest 6-digit number, 1,00,000 — one lakh. [p.2]
Why: The largest 5-digit number is 99,999; adding 1 gives the smallest 6-digit number, 1,00,000 — one lakh. [p.2]
Q2. Which is the correct number name of 12,78,830?
- Twelve lakh seventy eight thousand eight hundred thirty
- One crore twenty seven lakh
- Twelve thousand seven hundred eighty eight
- One lakh twenty seven thousand
Show answer
Answer: A. Twelve lakh seventy eight thousand eight hundred thirty
Why: In the Indian system 12,78,830 is twelve lakh seventy eight thousand eight hundred thirty. [p.4]
Why: In the Indian system 12,78,830 is twelve lakh seventy eight thousand eight hundred thirty. [p.4]
Q3. 100 lakhs is called one ______.
Show answer
Answer: crore
Why: Pressing +10,00,000 ten times gives 100 lakhs = 1 crore (1,00,00,000). [p.8]
Why: Pressing +10,00,000 ten times gives 100 lakhs = 1 crore (1,00,00,000). [p.8]
Q4. Compare: 30 thousand ☐ 3 lakhs
- <
- >
- =
Show answer
Answer: A. <
Why: 3 lakhs = 3,00,000 = 300 thousand > 30 thousand. [p.9]
Why: 3 lakhs = 3,00,000 = 300 thousand > 30 thousand. [p.9]
Q5. A school has 732 people. The principal orders 750 sweets. This is an example of ______.
- rounding up
- rounding down
- exact counting
- estimating a difference
Show answer
Answer: A. rounding up
Why: Rounding up gives an approximation more than the actual number — useful so no one is left out. [p.10]
Why: Rounding up gives an approximation more than the actual number — useful so no one is left out. [p.10]
Q6. Using Roxie’s shortcut (×5 = ÷2 then ×10), find 116 × 5.
Show answer
Answer: 580 (± 0)
Why: 116 ÷ 2 = 58, and 58 × 10 = 580. [p.13]
Why: 116 ÷ 2 = 58, and 58 × 10 = 580. [p.13]
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Frequently asked questions
How many practice questions are there for Class 7 Mathematics Chapter 1: Large Numbers Around Us?
34 questions (7 easy, 20 medium, 7 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 7 Mathematics syllabus, used by CBSE and many state boards.