计算下面各题.能简算的要简算. (1)++ (2) (3)+++ (4)1 (5)8 (6)-+ (7)-(+) (8)-+ (9)-(-)
计算下面各题,能简算的要简算。 | |||||||||
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(1)![]() ![]() ![]() = ![]() ![]() =1 | (2)![]() ![]() ![]() = ![]() ![]() = ![]() | (3)![]() ![]() ![]() ![]() = ![]() =1 ![]() |
(4)1-![]() ![]() = ![]() ![]() = ![]() | (5)8-![]() ![]() =8-1 =7 | (6)![]() ![]() ![]() = ![]() ![]() = ![]() |
(7)![]() ![]() ![]() = ![]() ![]() = ![]() | (8)![]() ![]() ![]() =1- ![]() = ![]() | (9)![]() ![]() ![]() = ![]() ![]() = ![]() |


计算下面各题,能简算的要简算。 | |||||||||
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(1)![]() ![]() ![]() = ![]() ![]() =1 | (2)![]() ![]() ![]() = ![]() ![]() = ![]() | (3)![]() ![]() ![]() ![]() = ![]() =1 ![]() |
(4)1-![]() ![]() = ![]() ![]() = ![]() | (5)8-![]() ![]() =8-1 =7 | (6)![]() ![]() ![]() = ![]() ![]() = ![]() |
(7)![]() ![]() ![]() = ![]() ![]() = ![]() | (8)![]() ![]() ![]() =1- ![]() = ![]() | (9)![]() ![]() ![]() = ![]() ![]() = ![]() |