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Vanessa Wen
Subject: Maths
, asked on 24/9/16
Greedy Gatekeepers
Remember Birbal, the clever minister of King Akbar? (Math-Magic Class IV. page 14) Do you know how he became a minister?
Birbal was then a young boy living in a village. He was very clever and could write poetry.
He thought he would try his luck in the King's court. So he took some of his poems and set off for the city.
When he reached the outer gate of the palace, he was stopped by the gatekeeper. "Hey! Stop there! Where are you going?", shouted the gatekeeper.
"I am a poet. I want to see King Akbar and show my poems to him", replied the poet.
"Oh, you are a poet! The king is kind, he will surely give you a prize. I will let you in if you give me
1
10
of your prize".
Young Birbal agreed since he had no other way.
When he went in, the gatekeeper calculated "If he gets 100 gold coins I will get _________ gold coins".
The poet came to a second gatekeeper.
This gatekeeper also said, "I will let you in if you give me
two-fifth
of your prize". The poet agreed.
The gatekeeper happily calculated, "The poet will get at least 100 gold coins so I will get ___________ gold coins!"
The poet reached the last gate. The gatekeeper said, "I will allow you to see the king only if you give me
half
of the prize that you get". The poet had no other way. He agreed and went inside.
The gatekeeper thought, "Today is a great day. If he gets 100 gold coins I will get __________ gold coins. But if he gets 1000 coins ― wow! I will get ____________".
The king was very happy with the poems and said, "Your work is very good. You can ask anything as your prize".
"My Lord, I want 100 slaps". "What! 100 slaps? ___________". The king was shocked ―
• What happened after that? Complete the story. What part of the prize did the poet get?
Answer
1
Alicia
Subject: Maths
, asked on 24/9/16
Make different patterns by colouring some squares in the grids B, C, D. What part of the grid did you colour? What part of the grid remained white? Write.
Answer
1
Jerome Yeo
Subject: Maths
, asked on 24/9/16
Look at grid A again. Is the grid coloured ―
(a)
1
2
blue
,
1
2
white
?
(b)
2
4
blue
,
2
4
white
?
(c)
3
8
blue
,
5
8
white
?
(d)
4
8
blue
,
4
8
white
?
Mark (✕) on the wrong answer.
Answer
1
Shasha Lee
Subject: Maths
, asked on 24/9/16
Draw grids of 16 squares and make patterns with
(a)
2
8
red
,
1
2
yellow
,
1
4
green
(b)
3
16
blue
,
5
16
red
,
1
2
yellow
Answer
1
Morgan Ong
Subject: Maths
, asked on 24/9/16
Ramu's vegetable field has 9 equal parts. What vegetables does he grow?
(1) Which vegetable grows in the biggest part of his field? What part?
(2) On what part of the field does he grow potatoes?
(3) What part of the field is used to grow spinach? What part is used for brinjals?
(4) Now you write some questions by looking at this picture.
Answer
1
Lyana
Subject: Maths
, asked on 24/9/16
Ramu wanted to give below vegetables to his friends. He gave Aboobacker one-fifth of these tomatoes and
1
3
of the potatoes. Srija got
2
5
of the tomatoes and
3
6
of the potatoes. Nancy got the rest of these vegetables. Circle Aboobacker's share in blue. Circle Srija's share in yellow.
• How many potatoes and tomatoes did Nancy get?
Answer
1
Mark Goh
Subject: Maths
, asked on 24/9/16
The Card Puzzle
(1)
Divide the white area in square A into two equal parts
.
Got the answer? Was that easy?
Now do the second question.
(2)
Divide the white area in square B into three equal parts!
That too is easy, isn't it?
Now see the third question.
(3)
Divide the white area in square C into four equal parts!!
Is it a bit difficult? Don't worry, take your time.
Only if you have given up, look for the answer.
Here comes the last question.
(4) Divide the white area in square D into seven equal parts!!!!
The world record for this is 7 seconds. But you can take minutes!
Tired of thinking? Look for the answer on page 68.
So was that difficult??
Answer
1
Lee Jin
Subject: Maths
, asked on 24/9/16
What part of each shape is coloured?
First guess the answer, then check.
(1)
(2)
(3)
(4)
Answer
1
Bern Chia
Subject: Maths
, asked on 24/9/16
Look at the small triangle. What part of the square is it? How will you find this out?
Answer
1
Iris Tan
Subject: Maths
, asked on 24/9/16
Coloured Parts
Complete these
(1)
This circle is divided into two equal parts. Out of _________ equal parts one part is coloured blue.
(2)
Here the circle is divided into _________ equal parts. Out of ________ equal parts, ________ parts are coloured blue.
(3)
Here the circle is .............................................
(4)
Here the circle is .............................................
Answer
1
Jing Yi Ho
Subject: Maths
, asked on 24/9/16
Ramesh bought a piece of halwa for his children Ammu and Anu.
He divided it equally for them.
• Each will get __________ part of halwa.
"This piece is too big. We can't eat it", they said.
So he divided the pieces into half again. Now how many pieces will Ammu get? ________
• What part of the halwa is it? _________
"Make it even smaller, Dad" they asked.
So he again cut the halwa into smaller pieces.
"Ok, thank you, Dad."
• Now how many pieces will each get?
• What part of the halwa is each piece now?
• If Ramesh had cut the halwa into 6 equal parts how many pieces would each have got? Look at your answers for questions 1 to 4 and write ―
1
2
= ― = ― = ― = ― = ―
Answer
1
Shasha Tay
Subject: Maths
, asked on 24/9/16
Look at the picture. Write what part of the strip is each green piece. Write the part for a piece of each colour.
How many one-fourths will make a half?
How many
1
8
will make
1
4
?
How many
1
8
are in
1
2
?
Now ask your friends some questions on the same picture.
Answer
1
Lex Sim
Subject: Maths
, asked on 24/9/16
Patterns
Look at this square.
What part is coloured blue?
What part is green?
Answer
1
Morgan Sim
Subject: Maths
, asked on 24/9/16
Ammini says half of half and one-third of three-quarters are equal. Do you agree? How will you show this?
Answer
1
Declan Chan
Subject: Maths
, asked on 24/9/16
This show
1
5
petals of a flower. Complete the flower by drawing the other petals.
Answer
1
Prev
1
2
3
4
5
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What are you looking for?
Remember Birbal, the clever minister of King Akbar? (Math-Magic Class IV. page 14) Do you know how he became a minister?
Birbal was then a young boy living in a village. He was very clever and could write poetry.
He thought he would try his luck in the King's court. So he took some of his poems and set off for the city.
When he reached the outer gate of the palace, he was stopped by the gatekeeper. "Hey! Stop there! Where are you going?", shouted the gatekeeper.
"I am a poet. I want to see King Akbar and show my poems to him", replied the poet.
"Oh, you are a poet! The king is kind, he will surely give you a prize. I will let you in if you give me of your prize".
Young Birbal agreed since he had no other way.
When he went in, the gatekeeper calculated "If he gets 100 gold coins I will get _________ gold coins".
The poet came to a second gatekeeper.
This gatekeeper also said, "I will let you in if you give me two-fifth of your prize". The poet agreed.
The gatekeeper happily calculated, "The poet will get at least 100 gold coins so I will get ___________ gold coins!"
The poet reached the last gate. The gatekeeper said, "I will allow you to see the king only if you give me half of the prize that you get". The poet had no other way. He agreed and went inside.
The gatekeeper thought, "Today is a great day. If he gets 100 gold coins I will get __________ gold coins. But if he gets 1000 coins ― wow! I will get ____________".
The king was very happy with the poems and said, "Your work is very good. You can ask anything as your prize".
"My Lord, I want 100 slaps". "What! 100 slaps? ___________". The king was shocked ―
• What happened after that? Complete the story. What part of the prize did the poet get?
(a)
(b)
(c)
(d)
Mark (✕) on the wrong answer.
(a)
(b)
(1) Which vegetable grows in the biggest part of his field? What part?
(2) On what part of the field does he grow potatoes?
(3) What part of the field is used to grow spinach? What part is used for brinjals?
(4) Now you write some questions by looking at this picture.
• How many potatoes and tomatoes did Nancy get?
(1) Divide the white area in square A into two equal parts.
Got the answer? Was that easy?
Now do the second question.
(2) Divide the white area in square B into three equal parts!
That too is easy, isn't it?
Now see the third question.
(3) Divide the white area in square C into four equal parts!!
Is it a bit difficult? Don't worry, take your time.
Only if you have given up, look for the answer.
Here comes the last question.
(4) Divide the white area in square D into seven equal parts!!!!
The world record for this is 7 seconds. But you can take minutes!
Tired of thinking? Look for the answer on page 68.
So was that difficult??
First guess the answer, then check.
(1)
(2)
(3)
(4)
Complete these
(1)
This circle is divided into two equal parts. Out of _________ equal parts one part is coloured blue.
(2)
Here the circle is divided into _________ equal parts. Out of ________ equal parts, ________ parts are coloured blue.
(3)
Here the circle is .............................................
(4)
Here the circle is .............................................
He divided it equally for them.
• Each will get __________ part of halwa.
"This piece is too big. We can't eat it", they said.
So he divided the pieces into half again. Now how many pieces will Ammu get? ________
• What part of the halwa is it? _________
"Make it even smaller, Dad" they asked.
So he again cut the halwa into smaller pieces.
"Ok, thank you, Dad."
• Now how many pieces will each get?
• What part of the halwa is each piece now?
• If Ramesh had cut the halwa into 6 equal parts how many pieces would each have got? Look at your answers for questions 1 to 4 and write ―
= ― = ― = ― = ― = ―
How many one-fourths will make a half?
How many will make ?
How many are in ?
Now ask your friends some questions on the same picture.
Look at this square.
What part is coloured blue?
What part is green?