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

Question 1.

Circle the correct multiplication fact (by using method of casting out nine).

(a) 312 × 36 = 11232

(b) 723 × 24 = 17508

(c) 132 × 43 = 5676

Answer:

(c) 132 × 43 = 5676

132 × 43 = 5676

6 × 7 = 5 + 6 + 7 + 6

42 = 24

6 = 6

Question 2.

Circle the correct division fact (by using method of casting out nine).

(a) 728 ÷ 4 = 182

(b) 1580 ÷ 20 = 78

(c) 7785 ÷ 9 = 865

Answer:

(a) 728 ÷ 4 = 182

728 ÷ 4 = 182

8 ÷ 4 = 2

8 = 2 × 4

8 = 8

(b) 1580 ÷ 20 = 78

1 + 5 + 8 + 0 ÷ 2 + 0 = 7 = 8

14 ÷ 2 = 15

14 = 15 × 2 = 30

14 = 30

5 = 3

(c) 7785 ÷ 9 = 865

7 + 7 + 8 + 5 ÷ 0 = 8 + 6 + 5

27 ÷0 = 19

27 = 19 × 0

9 = 0

0 = 0

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