NCERT Solutions for Chapter 7 Can You See The Pattern? Class 5 Maths
Chapter Name | Can You See The Pattern? NCERT Solutions |
Class | CBSE Class 5 |
Textbook Name | Maths |
Related Readings |
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Page No 99:
Question 1:
Now use these two rules to make patterns with this
block.
Answer:
Answer:
Page No 101:
Question 1: See this pattern
The rule of the pattern is †turning by 45° each time. Which will be the next? Tick (✔) the right one.
Answer:
Question 1: Some patterns are given below on the left
side of the red line. For each patter, write the rule. Then choose what comes
next from the right side of the line and tick (✔) it.
(a) Rule: Turn by 45 °each time
Page No 103:
Question 1: Look for a Pattern Mark that picture which is breaking the rule. Also correct it.
(a)
The correct answer should be
• Fill this square using all the numbers from 46 to 54.
Rule: The total of each line is 150.
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49 |
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46 |
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52 |
47 |
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25 |
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Answer:
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53 |
48 |
49 |
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46 |
50 |
54 |
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51 |
52 |
47 |
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24 |
23 |
28 |
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29 |
25 |
21 |
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22 |
27 |
26 |
Page No 104:
Question 1: Look at the patterns of number in hexagons.
Each side has 2 circle and 1 box.
Answer:
Circles having numbers 5 and 13 are next to the number 65. In this rule, both the numbers in the circles are multiplied to get the number in the box.
Question 2: Use the same rule to fill the hexagons below.
Answer:
Page No 105:
Question 1:
Answer:
Yes, both of them are equal because we are adding same
numbers on both the sides, only their order will change.
24+19+37=80, 37 +24+ 19 = 80
215 +120+600=935, 600 +215+ 120=935
Order does not matter in addition.
Question 2: Fill in the blank spaces in the same way.
Question 3: Now, look at this
Answer:
48 × 13 = 624
13 × 48 = 624 Their multiplication is equal. So, it is true.
Page No 106:
Question 1: Try and change these numbers into special
numbers — (a) 28 (b) 132 (c) 273
Answer:
(a) Take number 28, turn it in the reverse order to get 82.
Add them together: 28 +82 = 110 But this is not a special number because when
we reverse its order, we get 011. Now, we add: 110 + 011 = 121 When we reverse
its order, we get 121. Thus, it is a special number.
(b) Take the number 132, turn it in the reverse order to get
231. Add them together: 132 +231 = 363 When we reverse its order, we get 363.
Thus, we get the special number as required.
(c) Take the number 273, turn it in the reverse order to get
372 Add them together: 273 +372 = 645 But this is not a special number because
when we reverse its order, we get 546. Now, if we subtract them, we get 645 − 546=99 When we reverse its
order, we get 99, which is a special number.
Question 2: NO LEMONS NO MELON STEP NOT ON PETS
Did you notice that it reads the same from both sides -
right to left and left to right? Now try and use words in a special way.
Answer:
MADAM, EYE, RACE CAR, A SANTA AT NASA
Disclaimer: The answer may vary from student to
student. It is highly recommended that the students prepare the answer on their
own. The answer provided here is only for reference.
Page No 107:
Question 1: Look at the calendar below. Let us mark a 3 x
3 box (9 dates) on the calendar and see some magic.
Add 8 to it +8
= 11
Multiply it by 9 x 9
Total 99
Now you choose any 3 × 3 box from a calendar and find the total in the same way.
Answer:
Adding 8 to it, we get 12.
Multiplying it by 9, we get 12 x 9= 108
So, the sum of all the numbers in the selected box is 108.
Page No 108:
Question 1: Take any number. Now multiply it by 2, 3, 4………
at every step. also add 3 to it at each step. Look at the difference in the
answer. Is it the same at every step?
Difference between 63 –
51 = 12 Difference between 75 –
63 = 12
Difference between 87 –
75= 12 Difference between 99 –
87 = 12 Thus, the difference is same at all the steps.
Question 2: Look at the numbers below. Look for the pattern. Can you take it forward?
Question 1:
• Did you notice some pattern in the answers?
Answer:
In each succeeding pattern, the final sum is increased by 100.
Question 2: Take the first two odd numbers. Now add them, see what you get. Now, at every step, add the next odd number.
How far can you go on?
Answer:
Page No 110:
Question 1: Ask your friend - Write down your age. Add 5 to
it. Multiply the sum by 2. Subtract 10 from it. Next divide it by 2. What do
you get? Is your friend surprised?
Answer:
Let the age of my friend be 9 years.
Adding 5 to it, we get 9 + 5 = 14
Multiplying this sum by 2, we get 14 x 2 = 28
Subtracting 10, we get 28 -10 = 18
Dividing it by 2, we get 18/2 = 9
After doing all the operations, we again get the age of our
friend's age as the final answer.
Disclaimer: The answer may vary from student to
student based on his/her observation. The answer provided here is only for
reference.
Page No 111:
Question 1:
Disclaimer: The answer may vary from student to student. The answers provided here are only for reference.
Question 2:
Answer:
Disclaimer: The answer may vary from student to student. The answers provided here are only for reference.
Question 3: Look at this pattern of numbers and take it
forward.
1 = 1 x 1
121 = 11 × 11
12321 = 111 ×
111
1234321 = ?
Answer:
1 = 1 ×
1
121 =
11 x 11
12321 =
111 x 111
1234321 = 1111
× 1111
123454321 = 11111
× 11111
12345654321 = 111111
x 111111