Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 3 Patterns Ex 3.3

 

Tamilnadu Samacheer Kalvi 4th Maths Solutions

 Term 1

Chapter 3

Patterns Ex 3.3

Fill in the blanks :

i.90. 180, 270, _____, _____, _____,

ii. A9, B18, C27, D36, _____, _____, _____,

Answer:

i. 90. 180, 270, _____, _____, _____,

360, 450, 540.

ii. A9, B18, C27, D36, _____, _____, _____,

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 C

Answer

Complete the following sequence.

Question 1.

9 × 6 = 54

9 × 66 = 594

9 × 666 = 5994

9 × 6666 = 5 ____ 4

9 × 666666 = ______

Answer:

9 × 6666 = 59994

9 × 666666 =5999994

Question 2.

9 × 111 = 999

9 × 222 = 1998

9 × 333 = 2997

9 × 444 = ______

9 × 555 = ______

9 × 666 = ______

Answer:

9 × 444 = 3996

9 × 555 = 4995

9 × 666 = 5994.

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 5km 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 km distance?

4 signals +4 signals + 4 signals + 4 signals = 16 signals

There are 16 signals are needed for a 20 km distance.

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