Page 24 - Start Up Mathematics_4

2. Arushi has 5,625 stamps. Honey has 35 stamps more than Arushi. Devesh has 120
stamps less than Honey. Aditya has 50 more stamps than Devesh. Who has the largest
and the smallest number of stamps?

3. List all the numbers that can be rounded off to the given numbers.
(a) 150 (b) 400 (c) 80 (d) 1,200

GROUP ACTIVITY

To check the understanding of number names and place value

Things We Need: Chart paper (old greeting cards or visiting cards can also be used), a pencil
and crayons
How To Do:

1. Make a set of 10 number cards from 0 to 9, by
writing one number on each card. Shuffle the 0 1 2 3 4 … 9
cards and place them facing down.

2. Also, make 6 place value cards from ones to Lakhs Ten thousands Thousands
lakhs, by writing one place value on each
card. Hundreds Tens Ones
3. Divide the class into groups of four.

4. Call a group and ask a child from the group to come and pick any 5 number cards.
Ask the child to form the greatest 5-digit number using the cards. For example, if the
number cards picked up are 4, 2, 5, 1 and 0 then the greatest 5-digit number formed
will be 54210.

5. Ask the second child to write the place value of all the digits of the greatest 5-digit
number using the place value cards.

5 4 2 1 0

Ten thousands Thousands Hundreds Tens Ones

6. The third child will form the smallest 5-digit number using the same cards.

7. The fourth child will write the number name of the smallest 5-digit number.

8. Repeat the same activity with all the groups. Ask some groups to pick 6 number cards
and form 6-digit numbers.
9. Give marks to each group on the basis of their answers. The group with the maximum
marks will be the winner.

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