Exercise 3.4 - Chapter 3 - Patterns - Term 1 - 4th Maths Guide Samacheer Kalvi Solutions

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$\operatorname{Ex} 3.4$
Fill in the blanks :
i. $90.180,270$,
ii. $\mathrm{A} 9, \mathrm{~B} 18, C27, 836,
Answer:
i. $90.180,270$,
$360,450,540$.
ii. $\mathrm{A} 9, \mathrm{~B} 18, \mathrm{C} 27,836$,
E45 F54, G63.

B. Circle the multiples of 9 :
$25,27,35,36,45,46,54,55$
Answer:
25, (27), 35, (36), 45), 46, (54), 55

C. Complete the following sequence:
Question 1 .
$125,150,175$,
Answer:
$200,225,250$
 

Question $2 .$
$100,400,700 .$
Answer:
$1000,1300,1600$

Question 3 .

Answer:

Question 4

Answer:

Complete the following sequence.
Question $1 .$
$9 \times 6=54$ $9 \times 66=594$ $9 \times 666=5994$ $9 \times 6666=5=4$ $9 \times 666666=$

Answer:

$9 \times 6666=59994$ $9 \times 666666=5999994$
 

Question $2 .$
$\begin{aligned}
&9 \times 111=999 \\
&9 \times 222=1998 \\
&9 \times 333=2997 \\
&9 \times 444= \\
&9 \times 555= \\
&9 \times 666= \\
&\text { Answer: } \\
&9 \times 444=3996 \\
&9 \times 555=4995 \\
&9 \times 666=5994
\end{aligned}$

E. Answer the following Questions:
Question $1 .$
The school bell rings once in an hour, to indicate that the session ends/next session begins. And for break, it will be 20 minutes. Shall we try to fill this up.
Here is the time table.

Answer:

Question 2.

Imagine you are a traffic inspector. You are asked to design the traffic signal timings. Can you design it? Here is the time table

Answer:

Question $3 .$
A city is planned in such a way that every $5 \mathrm{~km}$ has a circle and has 4 signals around. So, can you guess where the signals and circle are there?
How many signals are needed for a $20 \mathrm{~km}$ distance?
Answer:

4 signals $+4$ signals $+4$ signals $+4$ signals $=16$ signals
There are 16 signals are needed for a $20 \mathrm{~km}$ distance.