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Numbers and Patterns

Number Theory Level 1

Knowing that:

$9\times 9+7=88$ ,
$98\times9+6=888$ ,
$987\times9+5=8888$ .

What is $98765432\times9 + 0$ ?

8888888888 888888888 none of the above 88888888

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Excel in math and science

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by Hana Wehbi

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