Find the square of 444.1. 1971362. 1894363. 1855364. 1969365. 198636

1.	Find the square of 444.1. 1971362. 1894363. 1855364. 1969365. 198636
Answer» Correct Answer - Option 1 : 197136 Concept used: Calculation skills trick. Calculation: Step - 1 Break down the number in such a way that the unit digit is separate and ten’s and hundred’s digit is together i.e. 44 and 4. Write down the squares of each of the parts in two digit format i.e. 44² = 1936 and 4² = 16 Note: - For 44², same method is used where the number is broken in 4 and 4 (ten's and unit digit) The number obtained after this step is 193616. Step – 2 Multiply the digits with each other and also with the power 2 i.e. 44 × 4 × 2 = 352 Step – 3 Add the number obtained in step - 1 with the number obtained in step – 2 keeping the unit place empty i.e. 1 9 3 6 1 6 _ _ 3 5 2 _ 1 9 7 1 3 6 This is our final answer.

Answer» Correct Answer - Option 1 : 197136

Concept used:

Calculation skills trick.

Calculation:

Step - 1

Break down the number in such a way that the unit digit is separate and ten’s and hundred’s digit is together i.e. 44 and 4.

Write down the squares of each of the parts in two digit format i.e. 44² = 1936 and 4² = 16

Note: - For 44², same method is used where the number is broken in 4 and 4 (ten's and unit digit)

The number obtained after this step is 193616.

Step – 2

Multiply the digits with each other and also with the power 2 i.e. 44 × 4 × 2 = 352

Step – 3

Add the number obtained in step - 1 with the number obtained in step – 2 keeping the unit place empty i.e.

1 9 3 6 1 6

_ _ 3 5 2 _

1 9 7 1 3 6

This is our final answer.

Discussion

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