1.计算题:(10′×5=50′)
(1)3.28-4.76+1
(3)42÷(-1 (5)-
(7)-14-(2-0.5)×
(9)(0.12+0.32) ÷
(11)-32-(?5)?(?)?18??(?3); (12){1+[
(13)5-3×{-2+4×[-3×(-2)2-(-4) ÷(-1)3]-7}. (14) (-4)x4+(-9)x2 (15) (-1)3x(-6x?)
(16)9?x(-7) (17)22x[(-7)x(-32)] (18)-72-(-6)2x(-12)
313132-; (2)2.75-2-3+1; 2464313)-1÷(-0.125); (4)(-48) ÷82-(-25) ÷(-6)2; 242517312+(??)×(-2.4). (6)-23÷1×(-1)2÷(1)2;
335861251111213×[()2-()3]; (8)-1×[1-3×(-)2]-( )2×(-2)3÷(-)3 32223441218[-2+(-3)2-3×]; (10)-6.24×32+31.2×(-2)3+(-0.51) ×624. 102725221313?(?)3]×(-2)4}÷(-??0.5); 44104
(19) 39+[-23]+0+[-16] (20)[-18]+29+[-52]+60
(21)[-3]+[-2]+[-1]+0+1+2 (22)[-301]+125+301+[-75]
(23)[-1]+[-1/2]+3/4+[-1/4]
(25)[-26.54]+[-6.14]+18.54+6.14
(27) -7.2-2.6+15.6-10.2-6+4.3 (28)(-1 )-1 +(-2 )-(-3 )-(-1 )+4
(29) |-2 |+(-3.7)+|-(+2.7)|-|-(7 )|
(24)[-7/2]+5/6+[-0.5]+4/5+19/6 (26)1.125+[-17/5]+[-1/8]+[-0.6]
参考答案
1111; (3)-14; (4)-; (5)-2.9 (6)-3 (7)-1; 2185163719 (8)- ; (9)1; (10)-624..(11)-31; (12)-8; (13)224(14)-34 (15)3 (16)68?
54271.(1)-0.73 (2)-1
(17)252 (18)-13 (19) 0 (20)19 (21)-3 (22)50 (23)-1 (24)1.25 (25)-8 (26)-3 (27)-6.1 (28)3 (29)-6
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