Sagot :
Answer:
Worked-out examples on addition of mass:
1. Add 7 kg 350 g and 2 kg 150 g
Solution:
Method 1 (with conversion into gram):
We know, 1 kg = 1000 grams
Now kg and g are converted into grams before doing addition and then we need to follow the simple addition process.
7 kg 350 g = (7 × 1000) g + 350 g = 7000 g + 350 g = 7350 grams
2 kg 150 g = (2 × 1000) g + 150 g = 2000 g + 150 g = 2150 grams
Now sum,
1
7350 g
+ 2150 g
9500 g
= 9 kg 500 g
Therefore, 7 kg 350 g + 2 kg 150 g = 9 kg 500 g
Method 2 (without conversion into gram):
Here kg and g are arranged in different columns and then added like ordinary numbers.
kg g
1
7 350
+ 2 150
9 500
= 9 kg 500 g
The answer is
[tex]8 \frac{1}{3} kg[/tex]
Solution:
[tex]9kg - \frac{2}{3} = \frac{25}{3} = 8 \frac{1}{3} kg[/tex]