This learning concept will introduce the students to halves in numbers. Also, the students will get to know about the quarters of numbers.
In this learning concept, students will learn to
The learning concept is explained to class 3 students with examples, illustrations, and a concept map. At the end of the page, two printable worksheets for class 3 with solutions are attached for the students.
Download the worksheets of lines and solutions to assess our knowledge of the concept.
Halves in Numbers
Example:
Find the half of 8.
Answer:
Half of 8 = 8 ÷
2 = 4
Halves In Large Numbers
For the large numbers like 84, 98, 128, … etc., we can find halves in different ways.
Example:
Find the half of
a)84 b)128
Answer:
a) 84 = 80 + 4
80 ÷
2 = 40
4 ÷
2 = 2
40 + 2 = 42
b) 128 = 100 + 20 + 8
100 ÷
2 = 50
20 ÷
2 = 10
8 ÷
2 = 4
50 + 10 + 4 = 64
Halves on Number Line
The distance between 0 -1 on a number line is always considered as a whole. Dividing this distance into two equal parts will give you two equal halves.
Quarters in Numbers
Example:
Find the quarter of 12.
Answer:
Quarter of 12 = 12 ÷
4 = 3
Three-Quarters of a Number:
Example:
Find the three-quarters of 12.
Answer:
A quarter of 12 = 12 ÷
4 = 3
Three-quarters of 12 = 3 × 3 = 9
Real-life Problems
Here, the real-life problems are discussed with examples.
1) Ranjan bought a cake of 1 kg for his birthday. He cut the cake into quarters to divide among his four friends. What is the weight of each quarter? What is the weight of three-quarters?
Answer:
1 kg = 1000 g
If the cake is divided into quarters, then the weight of each quarter is
1000 g ÷
4 = 250 g
So, the weight of each quarter is 250 g.
The weight of three-quarters of the cake is
3 × 250 g = 750 g
Hence, the weight of three-quarters of the cake is 750 g.
2) Sita and Gita bought one metre cloth together, and divided the cloths into halves. How much cloth each one gets?
Answer:
1 metre = 100 cm
100 cm ÷
2 = 50 cm
Hence, each one will get 50 cm of the cloth.
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