Question

4. 0.09 kg + 0.5 g - 120 mg = ?
(1) 93.38 mg (2) 93.38 g (3) 90,38 mg (4)90.38 g

Answer 1

Step-by-step explanation:

0.09kg= 0.09×1000 grams

=90g

1g=1000mg

120mg=120/1000

=0.12g

90g+0.5g+0.12g

=90.62g

(when we change a bigger unit to smaller unit, such as kg into gram, we multiply the number while when changing smaller unit to a bigger one, such as milligram to gram, we divide)

Answer 2

Step-by-step explanation:

The value of 0.09 kg + 0.5 g - 120 mg = 90.38 gram

Step-by-step explanation:

We have,

0.09 kg + 0.5 g - 120 mg

To find, the value of 0.09 kg + 0.5 g - 120 mg = ?

∴ 0.09 kg + 0.5 g - 120 mg

= 0.09 kg + 0.5 g - 120 mg

Since,

1 kg = 1000 g, 1 g = 1000 mg

= 0.09 × 1000 g + 0.5 g - 120 × 10^{-3}10

−3

g

= 90 g + 0.5 g - 0.12 g

= 90.5 g - 0.12 g

= 90.38 gram

∴ The value of 0.09 kg + 0.5 g - 120 mg = 90.38 gram