Question

( 900 + 390 ) - 780

Answer 1

 ( 900 + 390 ) - 780

= 1290 - 780

= 510

Answer 2

(900+390)-780

=1290 - 780

=510

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Answer 3

\(\left(900+390\right)-780\)

\(=1290-780\)

\(=510\)

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Answer 4

( 900 + 390 ) - 780

= 510 - 780

= - 270

Answer 5

=1290-780

=510

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Answer 6

 ( 900 + 390 ) - 780

= 1290 - 780

= 510

Answer 7

( 900 + 390 ) - 780

= 1290 - 780

= 510