How many zeroes will 19000-2 have nbsp-at the end-3-4-5-6-

The correct option is D 6 (19 × 1000)^2 = 19 × 19 × 1000 × 1000 = 19 × 19 × 1000000 ⇒ 6 zeroes Alternate: If a number ends with 'n' zeroes, its square ends wi ...

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Byju's Answer

Standard VIII

Mathematics

Checking Perfect Square by Unit Digit

How many zero...

Question

How many zeroes will $19000^{2}$ have at the end?

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Solution

The correct option is D
6

$(19 \times 1000)^{2}$
$= 19 \times 19 \times 1000 \times 1000$
$= 19 \times 19 \times 1000000 \Rightarrow$ 6 zeroes

Alternate:
If a number ends with 'n' zeroes, its square ends with '2n' zeroes.

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How many zeroes will 190002 have at the end?

The correct option is D 6 (19×1000)2 =19×19×1000×1000 =19×19×1000000⇒ 6 zeroes Alternate: If a number ends with 'n' zeroes, its square ends with '2n' zeroes.

How many zeroes will $19000^{2}$ have at the end?

The correct option is D
6

$(19 \times 1000)^{2}$
$= 19 \times 19 \times 1000 \times 1000$
$= 19 \times 19 \times 1000000 \Rightarrow$ 6 zeroes

Alternate:
If a number ends with 'n' zeroes, its square ends with '2n' zeroes.