Question

1. Find the ones digit of the cube of each of the following numbers
() 72​

Answer 1

Answer:

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Answer 2

Answer:

8th

Maths

Cubes and Cube Roots

Patterns in Cubes

Write the ones digit of the...

MATHS

Write the ones digit of the cube of each of the following numbers

A) 231

B) 358

C) 491

D) 854

E) 987

F) 752

EASY

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ANSWER

Multiply one's digit

(231)

3

=231×231×231

⇒ One's digit =1×1×1=1

(358)

2

=8×8×8=512

⇒ One's digit =2

(491)

3

=1×1×1=1

(854)

3

=4×4×4=64

⇒ One's digit =4

(987)

3

=7×7×7=343

⇒ One's digit =3

(752)

3

=2×2×2=8

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