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8. Tens and One

A girl is asking a man how many ten rupee notes and one rupee coins will make eighteen rupees and thirty five rupees.

Help me!

Uncle, I want to buy pencils for 18 rupees. I have just 10-rupees notes and 1-rupee coins. How many notes and coins should I give you?

18 rupees means 1 note of 10 rupees and 8 one-rupee coins.

How many notes and coins do I need to give 35 rupees?

You give me three 10-rupee notes and 5 coins of one rupee.

Ok, uncle if…

Hey Just tell me, how many pencils do you want?

None! Thank you Uncle, for helping me with my homework.

Can you do this without Uncle's help? Draw the10-rupee notes and 1-rupee coins you will give for these things.


There are three books and a price label of rupees twenty is attached to them and a blank is given for the answer. There is a box of colors and a price label of rupees fifty five is attached to it and a blank is given for writing the answer.There is a water bottle and a price label of rupees thirty two is attached to it and a blank is given for the answer.

  • How much money do the notes and coins make?
  • Three notes of rupees ten equals rupees thirty.


    Do similar exercises in the class with the help of play money.


    A boy is asking the questions given below in the practice time exercise from another boy.

    Practice Time

    I will say a number. Guess the break-up.

    OK, you say it, I will do it.

    Sixty-four?

    60 + 4

    Twenty-Five

    20 + 5

    What about 12? How will you do that?

    See, for 64 and 25 the number names tell us the break-up. But uhm.. twelve is different. So are eleven and nineteen.

    Now you write these and also say them aloud.

    27 = _____ + 7

    31 = 30 + _____

    54 = _____ + _____

    _____ = 90 + 9

    36 = _____ + _____

    _____ = 80  + 2

    You try writing the break-up far these.

    12 = 10 + 2

    19 = _____ + 9

    11 = _____ + _____

    _____ = 10 + 7


    Bangle Throw!

    There is a girl and a boy and some dots are drawn on a paper. A bangle is put on the paper, which is covering few dots.

    Karma and Gesar are playing a bangle game. Karma has thrown the bangle on the dots.

    Each big red dot is equal to 10 points. Each small green dot is equal to 1 point.

    The dots inside the bangle are

    Dots

    Points

    40

    4

    So, Karma has got 44 points.

    They throw the bangle twice each. Here are their points.

    Throw

    Karma

    Gesar

    Winner

    First

    44

    13

    Karma

    Second

    16

    32

    Gesar

    Dots of red and green colors on a board.

    You can play this game with your friend using the board above. Write your points for each throw.

    Throw

    My points

    My friend's points

    Winner

    First

    Second

    Third

    Fourth

    Fifth

    Sixth

    The Flute Man and the Rats

    1
    There are so many rats in a village. Inside the houses, on the light, on the table, on the floor, in the pots, in the windows, there are rats everywhere. Outside the houses also, there are rats and the children, men and women in the houses and outside, are trying to catch them but the rats are running.

    2
    The king is telling the  villagers that he wants someone to catch the rats in a basket and for each rat, he will give one gold coin.

    I want someone to catch the rats in a basket. For each rat you get one gold coin.


    3

    A man with a flute in his hand, is saying that he will do it and  the king is surprised.

    I will do it.

    What! With a flute

    4

    The flute man is playing the flute with his mouth and the rats are running behind him and he is then pushing them in the basket.


    5

    The flute man is giving the basket full of rats to the king and the king is asking him that he did he count so many rats.

    My reward Sir! I have collected 80 rats.

    But, how did you count so many rats?


    Simple! I used these cards.

    I counted one rat and kept one 1 card in my pocket.

    A triangular shaped card on which number one is written.  1 for one rat

    Two triangular shaped cards, number one is written on each.  for two rats for how many rats?

      Six triangular shaped cards, number one is written on each.  for how many rats? _____

    When I had 10 cards, I changed it A square shaped card, number ten is written on it.  with this card 10 in my pocket.

    Two stars formed by joining triangle shaped cards, number one is written in each card and there are five cards in each star. There is an arrow pointing towards number ten from these two cards.

    Then came 7 more rats. I then had in my pocket

    There is a star formed by five triangular shaped cards, in the middle of it, is a square shaped card with number ten written on it. There are two more triangle shaped cards with number one written on each of them.

  • Which cards will he have in his pocket if he has counted up to
  • a) 23 There is a triangle shaped card, then a square shaped card, then again a triangle shaped card, then a square shaped card, then one more triangle shaped card. Number one is written on triangle shaped cards and number ten is written on square shaped cards.

    b) 47

    c) 55

    d) 63

    e) 72

    f) 80

    Encourage children to make token cards and use them in different exercises.

     

    The King gave him gold coins.

    The flute man has made groups of coins. There are seven groups, with ten coins in each group. The flute man is surprised that the coins are not eighty.

    These are not eighty coins!

  • Can you guess what happened next?
  • Now act out the story in class.
  • The flute man has returned the basket full of rats to the king. The basket is open and the rats have surrounded the king from all sides.
    Here! Enjoy your rats.

    Clean School Day

    A teacher is telling her students to clean the school today. The number of students in class one are fifty three, number of students in class two are forty two, number of students in class three are thirty five, number of students in class four are fifty four and the number of students in class five are twenty six.

    We have to clean our school today. We make teams. Each team has 10 students.

    Our team will clean the best! Here we go! Rub and Scrub!

    The numbers of students in all the classes are:

    Class 1

    53

    Class 2

    42

    Class 3

    35

    Class 4

    54

    Class 5

    26

    How many teams will there be in each class? How many students will be left? Write here.

    How many teams?

    Students left

    Class 1

    Class 2

    Class 3

    Class 4

    Class 5

    • How many students are left in all?  
    • How many more teams can be made with all these students left?

    Practice Time: Teams of Ten in Your School

    • Find out the number of children in each class of your school.
    • Make teams of ten for each class.
    • How many children are left in each class?