Chapter 3: Give and Take

Q1Written answer

Try these on Kittu’s home:

(a) 10 less than 34 is __________.

(b) \[53 - 20 = \]_________

(c) 11 more than 31 is ________.

(d) 11 less than 66 is _________.

(e) \[62 + 13 = \]________

(f) 23 less than 89 is ________.

(g) 10 and 40 more is ________.

(h) 9 added to 28 gives ________.

(i) The sum of 9 and 44 is ________.

(j) Reducing 98 by 34 gives ________.

(k) 4 and 37 more is ________.

(l) Take 35 away from 83. We get _______.

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Worked solution

Ans: We have to subtract 10 from 34.

Therefore, 10 less than 34 is 24.

Ans: We have to subtract 20 from 53.

\[53 - 20 = 33\]

Ans: We have to add 11 in 31.

Therefore, 11 more than 31 is 42.

Ans: We have to subtract 11 from 66.

Therefore, 11 less than 66 is 55.

Ans: We have to add 62 in 13.

Therefore, \[62 + 13 = 75\]

Ans: We have to subtract 23 from 89.

Therefore, 23 less than 89 is 66.

Ans: We have to add 10 to 40.

Therefore, 10 and 40 more is 50.

Ans: We have to add 9 for 28.

Therefore, 9 added to 28 gives 37.

Ans: We have to add 9 for 44.

Therefore, The sum of 9 and 44 is 53.

Ans: We have to subtract 34 from 98.

Therefore,Reducing 98 by 34 gives 64.

Ans: We have to add 37 in 4.

Therefore, 4 and 37 more is 41.

Ans: We have to subtract 35 from 83.

Therefore, Take 35 away from 83. We get 48.

Q2Written answer

Hey! I have something more interesting for you. Ma told me, there are things to eat in some rooms. Help me find those room numbers. Mark them in my home. See what you get!

E.g., \[47 = 37 + 10\]

37 + 9 = ___

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Worked solution

Ans: We have to add 37 in 9 to get the missing number.

Therefore, \[37 + 9 = 46\]

62 - 30 = _____

Ans: We have to subtract 30 from 62 to get the missing number.

Therefore, \[62 - 30 = 32\]

_____ = 46 + 28

Ans: We have to add 46 in 28 to get the missing number.

Therefore, \[74 = 46 + 28\]

_____ = 87 – 14

Ans: We have to subtract 14 from 87 to get the missing number.

Therefore, \[73 = 87 - 14\]

62 - _____ = 43

Ans: We have to find a number so that subtracting that number from 62 will give 43. Therefore, subtract 43 from 62.

\[62 - 19 = 43\]

36 = _____ - 8

Ans: We have to find a number so that subtracting 8 from that number, we get 36 therefore, add 8 in 36.

Therefore, \[36 = 44 - 8\]

45 + ____ = 99

Ans: We have to find the number so that the sum of 45 and number should be 99. Therefore, subtract 45 from 99.

\[45 + 54 = 99\]

43 + ____ = 74

Ans: We have to find a number so that adding number in 43 and get 74 therefore, subtracting 43 from 74

\[43 + 31 = 74\]

_____ + 26 = 75

Ans: We have to find a number so that adding the number in 26 will give s=us 75. Therefore, subtracting 26 from 75

\[49 + 26 = 75\]

100 = ___ + 50

Ans: We have to find a number so that adding a number in 50 will give 100. Therefore, subtracting 50 from 100

\[100 = 50 + 50\]

___ - 1 = 1

Ans: We have to find a number so that subtracting 1 from that number gives us 1. Therefore, we can put 2 in the blank to get,

\[2 - 1 = 1\]

57 - ____ = 20

Ans: We have to find a number so that subtracting that number from 57 will give us 20. Therefore, subtracting 20 from 57

\[57 - 37 = 20\]

Q4Written answer

Now work out the steps in your mind. Write the answers directly in the boxes.

\[33 + 42 = \_\_\_\]

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Worked solution

Ans: \[33 + 42 = 75\]

\[19 + 61 = \_\_\_\_\]

Ans: \[19 + 61 = 80\]

\[\_\_\_ = 48 + 42\]

Ans: \[90 = 48 + 42\]

\[\_\_\_\_ = 33 + 27\]

Ans: \[60 = 33 + 27\]

\[\_\_\_\_\_ = 34 + 63\]

Ans: \[97 = 34 + 63\]

\[\_\_\_\_ = 53 + 64\]

Ans: \[117 = 53 + 64\]

\[55 + 25 = \_\_\_\_\]

Ans: \[55 + 25 = 80\]

\[67 + 25 = \_\_\_\_\_\]

Ans: \[67 + 25 = 92\]

\[72 + 56 = \_\_\_\_\]

Ans: \[72 + 56 = 128\]

Q5Written answer

A shopkeeper, Rafi had 153 candles. Paras gave him 237 more candles. How many candles does Rafi have now?

Calculation showing the addition of numbers

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Worked solution

Ans: Rafi has 153 candles and Paras gave 237 candles.

Total candles with Rafi is \[237 + 153 = 390\]

Addition of 153 using 237 and 153 candles

Q6Written answer

A train compartment is carrying 132 people. Another compartment is carrying 129 people. In all, how many people are there in both the compartments?

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Worked solution

Ans: First compartment has 132 people and Second compartment has 129 people.

Number of people in both the compartments = 132 + 129 = 261

Therefore, there are 261 people in both the compartments.

Q7Written answer

Shanu found 138 pebbles. Karim found 44 pebbles. How many pebbles did they find in all?

Calculation showing the addition of pebbles

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Worked solution

Ans: Shanu has 138 pebbles.

Karim has 44 pebbles.

Total number of pebbles both have \[138 + 44 = 182\]

Therefore, Shanu and Karim found 182 pebbles together.

Calculation showing the addition of 138 and 44 pebbles

Q8Written answer

A teacher kept a note of which fruits students like in her school. This is what she found:

Student	Oranges	Mangoes	Total
Girls	136	240
Boys	128	243
Total

Find out: (a) How many students in the school like oranges?

(b) How many students in the school like mangoes?

(c) Altogether, how many students are there in the school?

(d) Is the number of girls more than 350 or less than 350?

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Worked solution

Ans: 136 girls like oranges and 128 boys like oranges.

Total number of students who like oranges is \[\left( {136 + 128} \right)\] i.e. 264.

Ans: 240 girls like mangoes and 243 boys like mangoes.

Total number of students who like mangoes is \[\left( {240 + 243} \right)\] i.e. 483

Ans: 264 students like oranges and 483 students like mangoes.

Thus, the total number of students in the school is \[264 + 483\] i.e. 747.

Ans: 136 girls like oranges and 240 girls like mangoes.

Thus, the total number of girls in school is \[136 + 240\] i.e. 376.

Q9Written answer

Practice Time

(i) \[345 + 52\]

(ii) \[492 + 29\]

(iii) \[245 + 93\]

(iv) \[643 + 345\]

(v) \[750 + 219\]

(vi) \[319 + 823\]

(vii) \[804 + 406\]

(viii) \[363 + 456\]

(ix) \[427 + 248\]

(x) \[684 + {\text{ }}232\]

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Worked solution

Ans:

Calculation showing addition of 345 and 52

Ans:

Calculation showing addition of 492 and 29

Ans:

Calculation showing addition of 245 and 93

Ans:

Calculation showing addition of 643 and 345

Ans:

Calculation showing addition of 750 and 219

Ans:

Calculation showing addition of 319 and 823

Ans:

Calculation showing addition of 804 and 406

Ans:

Calculation showing addition of 363 and 456

Ans:

Calculation showing addition of 427 and 248

Ans:

Calculation showing addition of 684 and 232

Q10Written answer

Do all the sums mentally:

(a) \[75 + 20 = \]

(b) \[90 + 60 = \]

(c) \[25 + 30 + 3 = \]

(d) \[9 + 40 + 31 = \]

(e) \[500 + 200 = \]

(f) \[400 + 350 = \]

(g) \[670 + 120 = \]

(h) \[380 + 210 = \]

(i) \[205 + 650 = \]

(j) \[128 + 600 = \]

(k) \[150 + 69 = \]

(l) \[37 + 46 + 3 = \]

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Worked solution

Ans:\[75 + 20 = 95\]

Ans:\[90 + 60 = 150\]

Ans: \[25 + 30 + 3 = 58\]

Ans:\[9 + 40 + 31 = 80\]

Ans: \[500 + 200 = 700\]

Ans: \[400 + 350 = 750\]

Ans: \[670 + 120 = 790\]

Ans: \[380 + 210 = 590\]

Ans: \[205 + 650 = 855\]

Ans: \[128 + 600 = 728\]

Ans: \[150 + 69 = 219\]

Ans: \[37 + 46 + 3 = 86\]

Q11Written answer

You can also play it. Here are the cards for you. Work out the combination. Place the cards in the right boxes

(a)

(b)

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Worked solution

Ans:

Work out combinations for addition of cards

Ans:

Work out combinations for addition of numbers in cards

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