## Chapter 03 Fun With Numbers

**Look at the Ginladi.**

**A.** How many beads are there in ginladi?

**B.** There are some blank cards on the ginladi.
Write the numbers on them by counting
the number of beads.

**C.** Make number cards for the following numbers
and place them on your ginladi.

38, 44, 58, 65, 98

**Look at the number strip and fill in the blanks.**

**A.** The butterfly moves _________ steps forward to
reach the pink flower.

**B.** The honey bee moves _________ steps forward to
reach the red flower and _________ steps forward
to reach the yellow flower.

**C.** The squirrel jumps 2 steps backward, five steps
forward and again 3 steps backward. It will
reach at _________.

**D.** The frog jumps 2 steps forward, seven steps
backward and again 3 steps backward to reach
_________.

### Let us Play

**Guess my Number**

A child thinks of a number and other children have to guess it. Children will ask questions like, is it more than 50? Are the two digits of the number same? Questions that can be answered in ‘yes/no’. they can ask maximum 10 questions to guess the number.

**Guess my Place**

Three ants are sitting on a number line. Write the numbers for these ants.

Black ant is sitting on the number $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $

Red ant is sitting on the number $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $

Brown ant is sitting on the number $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $

Draw an ant on number 65 on the number line shown above.

Draw a sugar cube on number 79 on the number line shown above.

**Look! How Jumpy, the frog is jumping. Do you observe a pattern here?**

**Complete the following patterns.**

Encourage children to make their own number line on the ground and ask them to jump on it. Ask them questions such as if you jump in steps of two, which numbers will you step on, etc.

### Let us Do

**A.** On the number chart, use skip counting in two and draw $\Huge\circ$on the numbers. Now use skip counting in five and
draw $\large\triangle$ on the numbers in the number chart.

**B.** Write down the numbers
that are common to the
skips in twos and fives.___________________________

**C.** Write down the numbers
that are common to the
skips in twos, threes and
fives.___________________________

**D.** Write down the numbers
common to the skips of
fives and sevens?___________________________

**Jump and find the answers. Write ‘Yes’ or ‘No’.**

Make a number line on the ground and jump on it.

**A.** If you start from 10 and jump counting in tens,
will you land on number 100 at any time?
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**B.** Jump and find out if you start at 5 and count in
fives, will you jump on number 40 at any time?
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**C.** If you start from 0 and count in fives, will you
jump on number 55 at any time?
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**D.** If you start from 4 and count in twos, will you
jump on number 17 at any time?
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**E.** If you start from 13 and count in threes, will
you jump on number 24 at any time?
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

### Let us jump backward.

**Complete the following patterns.**

**What comes just before 10?**

**What comes just before 9?**

10, 9, 8, $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $

**A.** 40, 37, 34,
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**B.** 70, 65, 60,
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**C.** 100, 90,
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**D.** 100, 80,
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

Is there a pattern in the given numbers? If not, change the numbers to create a pattern. Also, extend it.

100, 90, 80, 70, 60, $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $

### Let us Talk

**A.** Rizwan is counting numbers from 20 onwards. Will he
say the number 19 in his count? Explain why?

**B.** Chavi is counting numbers in twos from 10 onwards.
Will she say 43? Explain why?

**C.** Mala is counting backwards from 20. How many steps
will it take to reach 0? Explain why?

**D.** Viraaj is counting backwards in twos from 20. How many
steps will it take to reach 0? Discuss.

### Let us Do

**Look at the number chart and write down the answers.**

$ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ comes just before 10 $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ comes just before 20

$ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ comes just before 30 $ \begin{array}{|l|} \hline \hspace{6 mm} \\ \hline \end{array} $ comes just before 40

Do you see any pattern? Shade the numbers on the number chart. Does the pattern continue for other numbers? If yes, write the pattern.

____, ____, ____, ____, ____, ____, ____, ____, ____, ____

Now, look at the numbers coloured green in the number chart. Write them.

1, 12, 23, ____, ____, ____, ____, ____, ____, ____

**What pattern do you notice? Discuss.**

Lakshanya made a number window and placed it on the number chart as shown below.

**A.** If the centre of the window
is placed on 28, which
number will be on the top
of it?
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**B.** Which number will be
below it?
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**C.** Which number will be on
its right?
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**D.** Which number will be on
its left?
$
\begin{array}{|l|}
\hline \hspace{6 mm} \\
\hline
\end{array}
$

**E.** Let us do it for other numbers.

**F.** Based on the same number grid fill the missing numbers.

**Exploring Patterns**

Observe how the number of blocks are increasing in the following shapes and extend the pattern.

### Let us Play — Bingo!

Make a 3 × 4 grid for playing ‘Bingo’.

**Fill the boixes of the gird with any n umber from 2 to 12. Number can be repeated.**

Let one child throw two dice and say the sum of the numbers of dots on the dice. Other children will cross the number on their grid. Continue this till child crosses all the numbers.

Bingo!

Encourage children to develop their strategy for selecting the numbers to be written on the grid.