Question

Only exercise-3
Answers

Answer 1

Answer:

You have already written the answers there what do you want

Step-by-step explanation:

Answer 2

Answer:

(1) 15 cm - 11 cm = 4 cm

(2) 13 cm - 8 cm = 5 cm

(3) Unknown number = x

7 + 2x = 49

2x = 49 - 7

2x = 42

x = 42/2

x = 21

(4) Unknown number = z

3x - 22 = 68

3x = 68 + 22

3x = 90

x = 90/3

x = 30

(5) Unknown number = y

7y - 3 = 53

7y = 53 + 3

7y = 56

x = 56/8

x = 8