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Using BODMAS/BIDMAS/PEDMAS:

2 × 7 - 10 ÷ 9 - 4 = (2 × 7) - (10 ÷ 9) - 4

= 14 - 10/9 - 4

= 10 - 10/9

= 10(1-1/9)

= 10(8/9)

= 80/9

= 8.888....

≈ 8.89

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7y ago

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