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E:\Working\Brother_Education\Preparatory_Stage_Maths-4_(31-10-2023)\Open_Files\Chap-04
\\January 6, 2024 5:27 PM Bharat Arora Proof-3 Reader _________________________ Date: ___________________74
Practice Time 4E
Find the estimated quotients by rounding off the numbers to their highest place.
1. 88 ÷ 34 2. 257 ÷ 28 3. 481 ÷ 14 4. 395 ÷ 16
5. 2402 ÷ 44 6. 3821 ÷ 22 7. 4620 ÷ 48 8. 7004 ÷ 53
Word ProblEms
Example 1: A wholesaler has 11232 kg of wheat contained in 24 24 11232 468
sacks equally, find the weight of wheat in each sack. – 96
Solution: Total quantity of wheat = 11232 kg – 163
Number of sacks = 24 144
192
Quantity of wheat in each sack = 11232 ÷ 24 = 468 kg – 192
Thus, the weight of wheat in each sack = 468 kg 0
Example 2: There is an equal number of students in each of the 8
houses of a school. If there are 488 students in the school, how many students are
there in each house? 8 488 61
Solution: Number of houses = 8 – 48
Total number of students = 488 8
Number of students in each house = 488 ÷ 8 = 61 – 8
Thus, the number of students in each house is 61. 0
The Four operations Together
The fundamental operations in mathematics are addition, subtraction, multiplication
and division. Now, we learn to solve mixed operation problems, which require more
than one operation to get the solution.
To solve the mixed operation problem, keep the following things in mind.
Read the problem carefully and visualise it in your mind.
Identify the keywords of the problem and mark them.
Find the operations needed to solve the problem.
Example 3: Saransh has 10 packets of 52 candies each and his sister Payal has 20
packets of 50 candies each. Both of them combine their candies and make 40 packets
to distribute in an orphanage. Find the number of candies put in each new packet.
Solution: Number of candies with Saransh = 10 packets of 52 = 52 × 10 = 520
Number of candies with Payal = 20 packets of 50 = 50 × 20 = 1000
Total number of candies = 520 + 1000 = 1520
Number of candies put in each new packet = 1520 ÷ 40 = 38.
80 Mathematics-4
