Page 114 - Start Up Mathematics_1

8 Write backward counting.

(a) 27 25 24

(b) 19 17

Little Genius!

Put the correct sign >, < or =.

(a) 3 tens 9 ones 9 tens 3 ones (b) 8 tens 0 ones 80 ones

(c) 4 tens 2 ones 30 ones (d) 6 tens 5 ones 5 tens 6 ones

GROUP ACTIVITY

To understand the concept of tens and ones

Things We Need: 9 rubber bands of two colours each (say red and black), a
pencil and a sheet of paper

How To Do:

1. Make groups with 3–5 children in each group.

2. Decide which colour rubber bands represent tens and ones respectively. Let

black rubber bands represent tens and red rubber bands represent ones.

3. Call a group and tell them a number, say 46.

4. Using the rubber bands, the children Tens Ones
will represent the given number in
tens and ones. So, they will have to
use 4 black rubber bands and 6 red

rubber bands to represent 46.

5. Ask them the number just before and
after the given number.

6. 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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