计算:(1)(-30)-(-28)+(-70)-88(2)-[3.5-(-1.13)-(-0.33)]+2.5(3)(-1114)×(-113)×(-0.3)×313×(-35)(4)1-125×[2-(-3)]2(5)(1-112-38+712)×(-24)(6)-23÷49×(-23)2+(-0.8)-数学
题文
计算: (1)(-30)-(-28)+(-70)-88 (2)-[3.5-(-1.13)-(-0.33)]+2.5 (3)(-11
(4)1-
(5)(1-1
(6)-23÷
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答案
(1)原式=-30+28-70-88 =-100-60 =-160; (2)原式=-[3.5+1.13+0.33]+2.5 =-4.96+2.5 =-2.46; (3)原式=
=9; (4)原式=1-
=1-
=1-1 =0; (5)原式=1×(-24)-
=-24+36+9-14 =7; (6)原式=-8×
=-8-
=-7
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