CBSE Class 3 Mathematics
NCERT Solutions
Chapter 3
GIVE AND TAKE
NCERT Solutions
Chapter 3
GIVE AND TAKE
PAGE 29
1. A jump from 2 to 12 is taking ___ steps.
Ans. 10 steps.
2. How will I go from 22 to 41? Jump from 22 to 42. Then one, step left. We can write it like this. 22 + 20 = 42, 42 – 1 = 41. How many steps did I go in all?
Ans. 3 steps.
3. Try these on Kittu’s home:
(a) 10 less than 34 is 24.
Ans. 24.
(b) 53 – 20 = ___
Ans. 53 – 20 = 33.
(c) 11 more than 31 is ___.
Ans. 42.
(d) 11 less than 66 is __.
Ans. 55.
(e) 62 + 13 = ___.
Ans. 75.
(f) 23 less than 89 is __.
Ans. 23 less than 89 is 66.
(g) 10 and 40 more than is ___.
Ans. 10 more than 40 is 50.
PAGE 31
(h) 9 added to 28 gives ___.
Ans. 37.
(i) The sum of 9 and 44 is ___.
Ans. The sum of 9 and 44 is 53.
(j) Reducing 98 by 34 gives ___.
Ans. 64.
(k) 4 and 37 more is __.
Ans. 4 and 37 more is 41.
(l) Take 35 away from 83. We get __.
Ans. We get 48.
PAGE 32
4. Add the numbers:
(a) 37 + 9 = _______
Ans. 46.
(b) 65 – 30 = _____
Ans. 35.
(c) _____= 46 + 21
Ans. 67.
(d) ___ = 87 – 30
Ans. 57
(e) 66 - ___ = 11
Ans. 55.
(f) 36 = __ + 9
Ans. 27.
(g) 45 + ___ = 99
Ans. 54.
(h) 40 + ___ = 76
Ans. 36.
(i) __ + 26 = 75
Ans. 49.
(j) 98 = __ + 50
Ans. 48.
(k) ___ - 21 = 35
Ans. 14.
(l) 57 - ___ = 20
Ans. 37.
PAGE 34
5. Can you do it another way? Show how.
(a) 37 + 21 = 30 + 7 + 20 + 1
Ans. 37 + 21 = 30 + 7 + 20 + 1
= 50 + 7 + 1
= 50 + 8 = 58
(b) 73 + 24 = 70 + 3 + 20 + 4
Ans. 73 + 24 = 70 + 3 + 20 + 4
= 90 + 3 + 4
= 90 + 7 = 97
(c) 56 + 21 = 50 + 6 + 20 + 1
Ans. 56 + 21 = 50 + 6 + 20 +1
= 70 + 6 + 1
= 70 + 7 = 77
6. Now work out the steps in your mind. Write the answers directly in the boxes.
(a) 33 +42 = ___
Ans. 75.
(b) __ = 33+ 27
Ans. 60.
(c) 55 + 25 = ___
Ans. 80.
(d) 19 + 61 = ___
Ans. 80.
(e) ___ = 34 + 63.
Ans. 97.
(f) 67 + 25 = ___
Ans. 92.
(g) __ = 48 + 42
Ans. 90
(h) ___ = 53 +64
Ans. 117.
(i) 72 +56 = ___
Ans. 128.
PAGE 40
7. A Shopkeeper Rafi had 153 candles. Paras gave him 237 more candles. How many candles does Rafi have now?
Ans.
100
|
10
|
1
| |
2
|
3
|
7
| |
+
|
1
|
5
|
3
|
Sum
|
3
|
9
|
0
|
8. Work out the following story problems in the same way. Read each problem and say it in your word. Guess the answer before writing it.
(a) A train compartment is carrying 132 people. Another compartment is carrying 129 people. In all, how many people are there in both the compartments.
Ans.
100
|
10
|
1
| |
People in compartment
|
1
|
3
|
2
|
People in other compartment +
|
1
|
2
|
9
|
Sum
|
2
|
6
|
1
|
PAGE 41
(b) Shannu found 138 pebbles. Karim found 44 pebbles. How many pebbles did they find in all?
Ans.
100
|
10
|
1
| |
1
|
3
|
8
| |
+
|
4
|
4
| |
1
|
8
|
2
|
(c) A teacher kept a note of which fruits students like in her school. This is what she found:
Students
|
Oranges
|
Mangoes
|
Total
|
Girls
|
136
|
240
| |
Boys
|
128
|
243
| |
Total
|
(i) How many students in the school like oranges?
Ans.
Students
|
Oranges
|
Mangoes
|
Total
|
Girls
|
136
|
240
|
376
|
Boys
|
128
|
243
|
371
|
Total
|
264
|
483
|
747
|
Number of students who like oranges = 136 + 128 = 264.
(ii) How many students in the school like mangoes?
Ans. Number of students in the school like mangoes = 240 + 243 = 483.
(iii) Altogether, how many students are there in the school?
Ans. Total number of students = 376 + 371 = 747.
(iv) Is the number of girls more than 350 or less than 350?
Ans. Number of girls is more than 350. It is 376.
PAGE 42
9. Practice Time:
(a)
3
|
4
|
5
|
+
|
5
|
2
|
Ans.
3
|
4
|
5
|
+
|
5
|
2
|
3
|
9
|
7
|
(b)
4
|
9
|
2
|
+
|
2
|
9
|
Ans.
4
|
9
|
2
|
+
|
2
|
9
|
5
|
2
|
1
|
(c)
2
|
4
|
5
|
+
|
9
|
3
|
Ans.
2
|
4
|
5
|
+
|
9
|
3
|
3
|
3
|
8
|
(d)
6
|
4
|
3
|
+ 3
|
4
|
5
|
Ans.
6
|
4
|
3
|
+ 3
|
4
|
5
|
9
|
8
|
8
|
(e)
7
|
5
|
0
|
+ 2
|
1
|
9
|
Ans.
7
|
5
|
0
|
+ 2
|
1
|
9
|
9
|
6
|
9
|
(f)
3
|
1
|
9
| |
+
|
8
|
2
|
3
|
Ans.
3
|
1
|
9
| |
+
|
8
|
2
|
3
|
1
|
1
|
4
|
2
|
(g)
8
|
0
|
4
| |
+
|
4
|
0
|
6
|
Ans.
8
|
0
|
4
| |
+
|
4
|
0
|
6
|
1
|
2
|
1
|
0
|
(h)
3
|
6
|
3
| |
+
|
4
|
5
|
6
|
Ans.
3
|
6
|
3
| |
+
|
4
|
5
|
6
|
8
|
1
|
9
|
(i)
3
|
6
|
3
| |
+
|
4
|
5
|
6
|
Ans.
3
|
6
|
3
| |
+
|
4
|
5
|
6
|
6
|
7
|
5
|
(j)
6
|
8
|
4
| |
+
|
2
|
3
|
2
|
Ans.
6
|
8
|
4
| |
+
|
2
|
3
|
2
|
9
|
1
|
6
|
PAGE 43
10. Work out for different ways to write the numbers.
(a)
78
|
+
|
+
|
30 +
|
+
|
Ans.
Add all the numbers in the first.
78
|
70 + 8
|
50+28
|
30+48
|
78+0
|
(b)
83
|
+
|
+43
|
+
|
+
|
Ans.
83
|
80+3
|
40+43
|
50+43
|
83+0
|
(c)
99
|
+
|
+39
|
+
|
+
|
Ans.
99
|
90+9
|
60+39
|
50+49
|
99+0
|
(d)
102
|
+
|
+
|
+
|
+50
|
Ans.
102
|
100+2
|
90+12
|
80+22
|
52+50
|
(e)
168
|
+
|
+
|
+68
|
+
|
Ans.
168
|
160+8
|
18+150
|
100+68
|
120+48
|
Puzzle
11. Can you solve this puzzle? Write the numbers 1,2, 3, 4,5, 6 in the circles, so that the sum of the numbers on each side of the figure is 12.
Ans.
Upper train have
= (19 – 5) + (6 – 15) + (7 – 3) + (6 – 10) + (4 – 20) + (1 – 7) + (5 – 4)
= 14 – 9 + 4 – 4 – 16 – 6 + 1
= 19 – 35 = -16
Lower train have
= (17 – 20) + (3 – 19) + (9 + 12) + (9 – 20)
= -3 – 16 + 21 – 11
= -30 + 21 = -30 + 21 = -9
PAGE 45
Card Game
12. Card game:
(a)
50
|
70
|
20
| ||
50
|
20
|
70
| ||
Ans.
50
|
70
|
20
| ||
50
|
+
|
20
|
=
|
70
|
20
|
+
|
50
|
=
|
70
|
50
|
20
|
70
| ||
70
|
-
|
50
|
=
|
20
|
70
|
-
|
20
|
=
|
50
|
(b)
30
|
42
|
12
| ||
30
|
42
|
12
| ||
Ans.
30
|
42
|
12
| ||
30
|
+
|
12
|
=
|
42
|
12
|
+
|
30
|
=
|
42
|
30
|
42
|
12
| ||
42
|
-
|
12
|
=
|
30
|
42
|
-
|
30
|
=
|
12
|
