Question

0.09kg+0.5g -120mg =? ​

Answer 1

0.09 kg = 9000mg

0.5 g = 500mg

therefore,

(9000+500-120)mg = 9380mg.

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Answer 2

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 × $10^{-3}$ 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