NCERT Solutions for Class 5th Maths Chapter 1 We the Travellers—I
Updated on 2026-09-19
About this chapter
Ten thousand. Keep adding a thousand: 1,000 · 2,000 · … · 9,000. Add one more thousand and you get 10,000 , read as ten thousand . It needs a new column in the place value chart, called TTh (ten thousands). So the chart is now TTh · Th · H · T · O. Every column is ten times the one on its right. 10 ones make 1 ten, 10 tens make 1 hundred, 10 hundreds make 1 thousand, and 10 thousands make 1 ten thousand. This one rule builds the whole number system. Reading a 5-digit number. Put a comma after the thousands, like 45,867. Then read the part before the comma as a number of thousands, and the part after it as an ordinary 3-digit number: forty-five thousand, eight hundred sixty-seven . Comparing numbers. First count the digits — a 5-digit number is always bigger than a 4-digit one. So 49,014 is
- Opening page and Reading and writing large numbers
- The place value chart and the Indian place value system
- Writing and naming numbers beyond 10,000 (token table)
- Question 1
- Questions 2 to 5
- Nearest Tens (10s), Hundreds (100s), and Thousands (1,000s)
- Rounding off, and numbers that share the same neighbour
- Travelling, Now and Then
- Finding Large Numbers Around Us
- Pastime Mathematics
Quick revision
| Word | What it means | Where it appears | Example |
|---|---|---|---|
| Ten thousand | Ten bundles of one thousand; written 10,000 | Page 2, place value chart | 9,000 + 1,000 = 10,000 |
| TTh column | The new ten-thousands column in the place value chart | Page 2 | 45,867 has 4 in the TTh column |
| Comma | A mark put after the thousands so a big number is easy to read | Page 2 | 13520 is written 13,520 |
| Number name | The number written in words | Pages 3–4, 6 | 10,458 = ten thousand four hundred fifty-eight |
| Expanded form | The number written as the sum of its place values | Page 14, Q7 | 10,304 = 10,000 + 300 + 4 |
| Increasing (ascending) order | Smallest first, biggest last | Page 6, Q3 | 18,926 · 34,407 · 34,740 … |
| Decreasing (descending) order | Biggest first, smallest last | Page 14, Q5 | 66,540 · 65,232 · 56,380 … |
| Nearest ten | The multiple of 10 closest to the number | Page 7 banner | Nearest ten of 2,346 is 2,350 |
| Nearest hundred | The multiple of 100 closest to the number | Page 8 | Nearest hundred of 2,346 is 2,300 |
| Nearest thousand | The multiple of 1,000 closest to the number | Page 8 | Nearest thousand of 2,346 is 2,000 |
| Rounding off | Replacing a number by its nearest ten, hundred or thousand | Page 8, Let Us Think | 7,030 rounds to 7,000 both ways |
| Interchange (swap) | Exchange the places of two digits | Page 7, Q5 | 1,478 → 7,418 |
| Multiple of 9 | A number you get by counting in nines: 9, 18, 27, 36 … | Pages 12–13 | 73 – 37 = 36, a multiple of 9 |
Exercises
- Opening page and Reading and writing large numbers — In-text Questions Page 1
- The place value chart and the Indian place value system — In-text Questions Page 2
- Writing and naming numbers beyond 10,000 (token table) — In-text Questions Page 3–4
- Question 1 — Let Us Do Page 5
- Questions 2 to 5 — Let Us Do Page 6–7
- Nearest Tens (10s), Hundreds (100s), and Thousands (1,000s) — Nearest Tens (10s), Hundreds (100s), and Thousands (1,000s) Page 7–8
- Rounding off, and numbers that share the same neighbour — Let Us Think Page 8–9
- Travelling, Now and Then — Let Us Do Page 10
- Finding Large Numbers Around Us — Finding Large Numbers Around Us Page 10–11
- Pastime Mathematics — Pastime Mathematics Page 11–13
- Questions 1 to 9 — Let Us Do Page 13–15
- King's Horses — King's Horses Page 15–16