Question

Do these sums.
5. (a) 5 cm 3 mm + 17 cm 6 mm + 35 cm 4 mm
137 km 9 m​

Answer 1

Explanation:

1. 5 cm 3mm = 5cm + 3mm = 5cm x 10 + 3mm = 50mm + 3mm = 53 mm

2. 17 cm 6mm = 17cm + 6mm = 17cm x 10 + 6mm = 170mm + 6mm = 176mm

3. 35cm 4mm = 35cm + 4mm = 35cm x 10 + 4mm = 350mm + 4mm = 354mm

4. 137km 9m = 137km + 9m = 137km x 1000 x 100 x 10 + 9m x 100 x 10 = 137000000mm + 9000mm = 137009000mm

Now we will add :-

53mm + 176mm + 354mm + 137009000mm = 137009583mm

This is our required answer and now we can change it in any unit we want.

For example, we will convert it in cm :-

137009583/10 = 13700958.3cm