The chapter **“How Many Times” **is **Chapter 6** from **Merry Math III **for students of** Class 3rd** of **JKBOSE**. The particular post is about **Length Mass and Capacity Solutions Page No 115 to Page No 120. **In a previous post, you read about **How Many Times Answers from Page No 106 to Page No 108.** Let’s get started:

**Length Mass and Capacity Solutions Page No 115 to Page No 120**

**Activity I ****Page No 115 – 116 Solutions**

**Convert into decimeters**

**3 metres**

**11 metres**

**21 metres**

**45 metres**

Sol.

3 metres = (10 x 3) dm = 30 dm

11 metres = (10 x 11) dm = 110dm

21 metres = (10 x 21) dm = 210dm

45 metres = (10 x 45)dm = 450dm

**7 metres**

**19 metres**

**30 metres**

**50 metres**

Sol.

7 metres = (10 x 7) dm = 70dm

19 metres = (10 × 19) dm = 190dm

30 metres = (10 x 30) dm = 300dm

50 metres = (10 x 50) dm = 500dm

**Convert into decimeters**

**i)** **2 m 2 dm**

Sol. 2m 2dm= 2m + 2dm

= (2 x 10) dm + 2dm

= 20dm + 2dm

= 22dm

**ii) 3m 4 dm**

Sol. 3m 4dm= 3m + 4dm

(3 x 10) dm + 4dm

30dm + 4dm

34dm

**iii) 5 m 5 dm**

Sol. 5m 5dm=5m + 5dm

= (5 x 10) dm + 5dm

= 50dm + 5dm

= 55dm

**iv) 5 m 5 dm**

Sol. 6m 7dm= 6m + 7dm

= (6 x 10) dm + 7dm

60dm +7dm

= 67dm

**v) 3m 9dm**

Sol. 3m 9dm= 3m + 9dm

= (3 x 10) dm + 9dm

= 30dm + 9dm

= 39dm

**vi) 9m 3dm**

Sol. 9m 3dm = 9m + 3dm

= (9 x 10) dm + 3dm

= 90dm + 3dm

= 93dm

**vii) 8m 8dm**

Sol. 8m 8dm = 8m + 8dm

(8 x 10) dm + 8dm

= 80dm +8dm

88 dm

**viii) 4m 4dm**

Sol. 4m 4dm = 4m + 4dm

= (4 × 10) dm + 4dm

= 40dm + 4dm

44dm

**Activity-II Page 116-117**

**Convert into centimetres:**

**3 dm**

**4 dm **

**21 dm **

**32 dm**

**43 dm**

**i) 3 dm**

Sol. 3 dm = (10 x 3) cm = 30cm

**ii) 4 dm **

Sol. 4 dm = (10 × 4) cm = 40cm

**iii)** **21 dm**

Sol. 21dm = (10 x 21) cm = 210cm

**iv)** **32 dm**

Sol. 32dm = (10 x 32) cm = 320cm

**v)** 4**3 dm**

Sol. 43dm = (10 × 43) cm = 430cm

**5 dm**

**10 dm**

**37 dm **

**45 dm**

**30 dm**

**i)** **5 dm**

Sol. 5 dm = (10 x 5) cm = 50cm

**ii) 10 dm**

Sol. 10dm = (10 × 10) cm = 100cm

**iii) 37 dm**

Sol. 37dm = (10 x 37) cm = 370cm

**iv) 45 dm**

Sol. 45dm = (10 x 45) cm = 450cm

**v) 50 dm**

Sol. 50dm = (10 x 50) cm = 500cm

**Convert into centimeters:**

**1 dm 2 cm**

**41 dm 9 cm**

**9 dm 7 cm**

**10 dm 9 cm**

**12 dm-3 cm**

**21 dm 5 cm**

**29 dm 1 cm**

**30 dm 3 cm**

**i) 1 dm 2 cm **

Sol. 1 dm 2 cm = 1dm + 2cm

= (1 x 10) cm + 2cm

= 10 cm + 2cm

= 12 cm

**ii) 41 dm 9 cm**

Sol. 41 dm 9 cm = 41dm + 9cm

= (41 x 10) cm + 9cm

= 410 cm + 9cm

= 419 cm

**iii) 9 dm 7 cm**

Sol. 9 dm 7 cm = 9dm + 7cm

= (9 x 10) cm + 7cm

= 90 cm + 7cm

= 97 cm

**iv) 10 dm 9 cm**

Sol. 10 dm 9 cm = 10 dm + 9cm

= (10 x 10) cm + 9cm

= 100 cm + 9cm

= 109 cm

**v) 12 dm-3 cm**

Sol. 12 dm 3 cm = 12dm + 3cm

= (12 x 10) cm + 3cm

= 120cm + 3cm

= 123 cm

**vi) 21 dm 5 cm**

Sol. 21 dm 5 cm= 21dm + 5cm

= (21 x 10) cm + 5cm

= 210 cm + 5cm

= 215 cm

**vii) 29 dm 1 cm**

Sol. 29 dm 1 cm = 29dm + 1cm

= (29 x 10) cm + 1 cm

= 290cm + 1cm

= 291 cm

**viii) 30 dm 3 cm**

Sol. 30 dm 3 cm= 30dm + 3cm

= (30 x 10) cm + 3cm

= 300cm + 3cm

= 303 cm

**Activity -III** **Page 118-119**

**1. Convert into centimetres :**

**3 m**

**5 m**

**8 m**

**15 m**

**21 m**

**i) 3 m**

Sol. 3m = (100 x 3) cm = 300cm

**ii) 5 m**

Sol. 5m = (100 x 5) cm = 500cm

**iii) 8 m**

Sol. 8m = (100 x 8) cm = 800cm

**iv) 15 m**

Sol. 15m = (100 x 15) cm = 1500cm

**v) 21 m**

Sol. 21m = (100 x 21) cm = 2100cm

**4 m**

**6 m**

**13 m**

**18 m**

**30 m**

**i) 4 m**

Sol. 4m = (100 × 4) cm = 400cm

**ii) 6 m**

Sol. 6m = (100 x 6) cm = 600cm

**iii) 13 m**

Sol. 13m = (100 x 13) cm = 1300cm

**iv) 18 m**

Sol. 18m = (100 x 18) cm =1800cm

**v) 30 m**

Sol. 30m = (100 x 30) cm = 3000cm

**Convert into centimetres :**

**1 m 90 cm**

**9m 10 cm**

**18 m 18 cm**

**8m 8 cm**

**20 m 2 cm**

**37 m 7 cm**

**8 m 3 dm**

**7m 6 dm**

**15 m 5 dm**

**10 m 1 m**

**12 m 2 dm**

**25 m 5 dm**

**i) 1 m 90 cm**

Sol. 1 m 90 cm = 1m + 90 cm

= (1 x 100) cm + 90 cm

100 cm + 90 cm

= 190 cm

**ii) 9m 10 cm**

Sol. 9 m 10 cm = 9m + 10cm

= (9 x 100) cm + 10 cm

=900cm + 10cm

= 910 cm

**iii) 18 m 18 cm**

Sol. 18 m 18 cm= 18m + 18 cm

= (18 x 100) cm + 18 cm

= 1800 cm + 18cm

= 1818 cm

**iv) 8m 8 cm**

Sol. 8 m 8 cm = 8m + 8cm

(8 x 100) cm + 8cm

= 800 cm + 8cm

= 808 cm

**v) 20 m 2 cm**

Sol. 20 m 2 cm = 20m + 2cm

= (20 x 100) cm + 2cm

= 2000 cm + 2cm

= 2002 cm

**vi) 37 m 7 cm**

Sol. 37 m 7 cm = 37m+7cm

= (37 x 100) cm + 7cm

= 3700 cm + 7cm

= 3707 cm

**vii) 8 m 3 dm**

Sol. 8 m 3 dm = 8m + 3dm

= (8 x 100) cm + (3 x 10) cm

= 800 cm + 30 cm

= 830 cm

**viii) 7m 6 dm**

Sol. 7 m 6 dm = 7m+ 6dm

= (7 x 100) cm + (6 x 10) cm

= 700 cm + 60 cm

= 760 cm

**ix) 15 m 5 dm**

Sol. 15 m 5 dm = 15 m + 5 dm

= (15 x 100) cm + (5 x 10) cm

= 1500 cm + 50 cm

= 1550 cm

**x) 10 m 1 m**

Sol. 10 m 1 dm = 10m + 1dm

= (10 x 100) cm + (1 x 10) cm

= 1000 cm + 10cm

= 1010 cm

**xi) 12 m 2 dm**

Sol. 12 m 2 dm = 12m + 2dm

= (12 x 100) cm + (2 x 10) cm

= 1200 cm + 20 cm

=1220 cm

**xii) 25 m 5 dm**

Sol. 25 m 5 dm = 25 m + 5dm

= (25 x 100) cm + (5 x 10) cm

= 2500 cm + 50 cm

=2550 cm

**Page 119-120**

**1. Fill in the blanks:**

Sol.

**Q.2. Put a tick (****🗸) ****on the correct relationships:**

Sol.

That’s it about **Length Mass and Capacity Solutions Page No 115 to Page No 120**. Hope you found it useful. Do show your love and suggestions in the comment section below.

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