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Practice each question, then open the answer or worked solution.
Question: 1
If the cat asks you to divide the chapati equally, how will you divide it?
Answer: I will fold the chapati into two equal halves and then break them from the creased line. Now, the chapati is half.
Half of Half
Question: 2
If two more cats come for food, how will you divide one chapatti equally for four cats?
Answer: First, divide the chapatis into two halves. Again, divide it into further two halves. Finally, I will break the chapatti from the creased line, as shown below:
NCERT Book Page No: 95-96
Half of Many Pieces
Rani got a chocolate. She divided it equally and gave half to her friend Reena.
Question: 3
(a) Circle the portion that Reena got.
(b) How many pieces of chocolate are there?
Answer: There are six pieces of chocolate in total.
(c) How many pieces were left with Rani?
Answer: Rani gave half of her chocolate to her friend Reena. So, Rani was left with 3 pieces of chocolate.
NCERT Book Page No: 96-97
Many Shapes from a Half Sheet
Question: 4
Draw different shapes using these triangles. One such shape is shown here.
Answer: Shapes using these triangles are shown below:
Many Ways to Cut into Half
Question: 5
In how many different ways can you cut a rectangle into half? Draw 5 different ways. Can you check if they are equal?
Answer: The five different ways of a rectangle are shown below.
Each part of the rectangle is equal as it exactly coincides with the other part.
Question: 6
In how many different ways can you cut a rectangle into four equal parts? Draw five different ways. Can you check if they are equal?
Answer: A rectangle divided into four equal parts is shown below. Yes, they are equal since each part exactly coincides with the remaining three parts.
NCERT Book Page No: 98
Cutting the Cake
Rajni’s father brought a cake. She divided the cake into 4 equal parts – for herself, her brother Raju, her father and her mother.
Question: 7
Colour each share with different colours.
Question: 8
How much does each get?
Answer: Each get 1/4 of the cake.
Question: 9
Mother gave her share of the cake to Rajni. Now, colour the total part that Rajni will get.
Answer: Each person gets 1/4 of the cake. So,
The cake that Rajni got = her share + her mother’s share
= 1/4 + 1/4
= 2 / 4
= 1 / 2
Hence, Rajni got 1/2 part of the cake.
Question: 10
Out of 4 parts, Rajni will get ________ parts, which is equal to half of the cake.
So, she can write it as ____ /4 or 1/2
Answer: Rajni gets 2 parts of cake out of 4 parts. Hence, she can write it as 2/4 or ½.