NCERT Solutions for Class 5th Maths Chapter 13 Animal Jumps
Updated on 2026-09-19
About this chapter
A jump size is a factor. A landing spot is a multiple. If you start at 0 and jump 4 steps every time, you land on 4, 8, 12, 16, 20 … Every number you land on is a multiple of 4. And 4 is a factor of every one of those numbers, because 4 divides each of them exactly, with nothing left over. This one picture is the whole chapter: jump size = factor, landing spot = multiple . Factors are small, multiples are big. A number has only a few factors, and they are never bigger than the number itself. 12 has six factors: 1, 2, 3, 4, 6 and 12. But 12 has endless multiples: 12, 24, 36, 48, 60 … which go on for ever. If you mix the two words up, ask yourself: am I jumping, or am I landing? An array shows the factors. Arrange 12 counters in a neat rectangle. You can make 3 rows of 4, or 2 rows of 6, or
- The multiplying box; factors, multiples and arrays
- and 12 are all factors of 12
- A rabbit jumps 4, a frog jumps 3
- Find 5 common multiples of the following pairs of numbers.
- The cobbled road to the food, and Mowgli's forest trail
- Jumps of 2, 3, 5 and 10 along the trail
- Common factors of 24 and 36; common factors of 12 and 13
- Hunting days; choosing a jump size to meet or avoid a friend
Quick revision
| Word | What it means | Where it appears | Example |
|---|---|---|---|
| Factor | A number that divides another number exactly, leaving nothing over | Page 164, the box game | 4 is a factor of 28, because 28 = 4 × 7 |
| Multiple | The number you get when you multiply — the spot you land on | Page 164 | 28, 36, 48 and 72 are multiples of 4 |
| Array | Objects set out in equal rows and columns, in a rectangle | Page 164, arrays for 15 and 12 | 3 rows of 4 counters show 3 × 4 = 12 |
| Prime number | A number with exactly two factors — 1 and itself | Page 165, the red note | 13 and 37 are prime numbers |
| Number line | A straight line with the numbers marked in order, used to show jumps | Pages 165–166 | 0, 1, 2, 3 … with arcs drawn over it |
| Common multiple | A number that is a multiple of two (or more) numbers | Page 165, rabbit and frog | 12 is a common multiple of 3 and 4 |
| Common factor | A number that divides two (or more) numbers exactly | Page 168, the pink banner | 2 is a common factor of 4, 12, 14 and 50 |
| Divisible | Divides exactly, with remainder 0 | Page 170, Question 11 | 90 is divisible by 2, by 5 and by 10 |
| Consecutive numbers | Numbers that follow one after the other | Page 169, Question 8 | 7 and 8; 24 and 25 |
| Even number | A number that ends in 0, 2, 4, 6 or 8 | Page 169, Question 8 | 26, 30, 50 |
| Odd number | A number that ends in 1, 3, 5, 7 or 9 | Page 169, Question 8 | 9, 21, 57 |
Exercises
- The multiplying box; factors, multiples and arrays — Find the Hidden Numbers Page 164
- and 12 are all factors of 12 — Why 12 is a Multiple Page 1651, 2, 3, 4, 6
- Make different arrays for the following numbers. Identify the factors in each case. — Let Us Do Page 165
- A rabbit jumps 4, a frog jumps 3 — Animal Jumps Page 165
- A spider jumps 3, a grasshopper jumps 6; then the multiples of 4 and 6 — Spider and Grasshopper Page 166
- Find 5 common multiples of the following pairs of numbers. — Let Us Do (Question 1) Page 166
- The cobbled road to the food, and Mowgli's forest trail — Let Us Do (Questions 2–3) Page 167
- Jumps of 2, 3, 5 and 10 along the trail — Mowgli's Jumps and Common Factors Page 168
- Common factors of 24 and 36; common factors of 12 and 13 — Let Us Do (Questions 4–5) Page 168
- Which numbers do jumps of 4 reach? Common factors of number pairs — Let Us Do (Questions 6–7) Page 169
- State whether the following statements are true (T) or false (F). — Let Us Do (Question 8: True or False) Page 169
- Hunting days; choosing a jump size to meet or avoid a friend — Let Us Do (Questions 9–10) Page 169
- Sort 90, 45, 84, 22, 66, 56, 38, 78, 25, 30, 62, 95, 75, 40 and 55 — Let Us Do (Question 11: Sorting) Page 170