Question

Solve 85.212 - 3.410​

Answer 1

Answer:

81.802

Step-by-step explanation:

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Answer 2

81.802

85.212 - 3.410 = 81.802

Step-by-step explanation:

Here, 85.212 - 3.410

= (80 + 5 + 0.2 + 0.01 + 0.002) - (3 + 0.4 + 0.01 + 0.000)

• We have expressed the given numbers in terms of their place values.

= 80 + 5 + 0.2 + 0.01 + 0.002 - 3 - 0.4 - 0.01 - 0.000

= 80 + (5 - 3) + (0.2 - 0.4) + (0.01 - 0.01) + (0.002 - 0.000)

• We have grouped the place values.

= 80 + 2 + (0.2 - 0.4) + 0.00 + 0.002

• Here, a problem arises: (0.2 - 0.4), where 0.2 < 0.4; so, we will take 1 from 2 (since 2 = 1 + 1) and add that with 0.2, and then perform subtraction.

= 80 + (1 + 1) + (0.2 - 0.4) + 0.00 + 0.002

= 80 + 1 + (1 + 0.2 - 0.4) + 0.00 + 0.002

= 80 + 1 + (1.2 - 0.4) + 0.00 + 0.002

= 80 + 1 + 0.8 + 0.00 + 0.002

= 81.802

NOTE:

You can also perfom simple subtraction. Just make sure to write the digits in proper order. Refer to the attached image.

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