Answer :
Let's solve the questions step by step:
The standard unit of measuring weight is kilogram (kg).
1 kg = 1000 g
To add 13 kg 490 g + 25 kg 950 g:
- First, add the grams: 490 g + 950 g = 1440 g. Since 1440 g is more than 1000 g, it can be converted into kg: 1440 g = 1 kg 440 g.
- Next, add the kilograms: 13 kg + 25 kg = 38 kg.
- Combine them: 38 kg + 1 kg 440 g = 39 kg 440 g.
1 g = 10 dg (decigrams)
B. Add:
To add 4 kg 330 g + 5 kg 440 g:
- Add the grams: 330 g + 440 g = 770 g.
- Add the kilograms: 4 kg + 5 kg = 9 kg.
- Result: 9 kg 770 g
To add 4 kg 550 g + 3 kg 220 g:
- Add the grams: 550 g + 220 g = 770 g.
- Add the kilograms: 4 kg + 3 kg = 7 kg.
- Result: 7 kg 770 g
To add 43 kg 500 g + 24 kg 390 g:
- Add the grams: 500 g + 390 g = 890 g.
- Add the kilograms: 43 kg + 24 kg = 67 kg.
- Result: 67 kg 890 g
C. Subtract:
To subtract 3 kg 156 g from 8 kg 250 g:
- First ensure 250 g is enough to subtract 156 g, which it is.
- Subtract the grams: 250 g - 156 g = 94 g.
- Subtract the kilograms: 8 kg - 3 kg = 5 kg.
- Result: 5 kg 94 g
To subtract 18 kg 380 g from 21 kg 550 g:
- Ensure 550 g is enough to subtract 380 g, which it is.
- Subtract the grams: 550 g - 380 g = 170 g.
- Subtract the kilograms: 21 kg - 18 kg = 3 kg.
- Result: 3 kg 170 g
To subtract 16 kg 250 g from 35 kg 650 g:
- Ensure 650 g is enough to subtract 250 g, which it is.
- Subtract the grams: 650 g - 250 g = 400 g.
- Subtract the kilograms: 35 kg - 16 kg = 19 kg.
- Result: 19 kg 400 g
I hope this helps you understand how to perform these calculations!
