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Find the unit's digit in (264)102 + (264)103.

D. 0
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Find the unit's digit in the product
(2467)163 x (341)72.

E. 7
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What value will replace the question mark in the following equations ?
->  ? - 1936248 = 1635773

A. 3572021
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The least prime number is :

C. 2
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The difference in the local value and the face value of 7 in the numeral 897504 is :

C. 6993
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