GRE
The remainder when n is divided by 5
2
The remainder when 11,999,999 is divided by 12
11
The units digit of $$9^{84}$$
1
The absolute value of units digit of $$7^{n}$$-$$3^{n}$$
3
The units digit of $$149^{2k}$$
The units digit of $$143^{2k}$$
The tens digit of n squared
6
The tens digit of ($$4^{100}$$)($$5^{99}$$)
The tens digit of ($$4^{100}$$)($$5^{101}$$)
The remainder when 9 is divided by r
The remainder when ($$123^{4}$$-$$123^{3}$$+$$123^{2}$$-123) is divided by 122
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236本备考书籍
