计算:(1)-2×3×(-4); (2)-6×(-5)×(-7); (3)0.1×(-0.001)×(-1);(4)(-100)×(-1)
题型:解答题难度:一般来源:不详
计算: (1)-2×3×(-4); (2)-6×(-5)×(-7); (3)0.1×(-0.001)×(-1); (4)(-100)×(-1)×(-3)×(-0.5); (5)(-17)×(-49)×0×(-13)×37; (6)-9×(-11)-12×(-8). |
答案
(1)原式=-6×(-4)=24; (2)原式=30×(-7)=-210; (3)原式=-0.0001×(-1)=0.0001; (4)原式=100×(-3)×(-0.5)=-300×(-0.5)=150; (5)原式=0; (6)原式=99+96=195. |
举一反三
计算:(-1)×(-1)×(-1)×…×(-1)×(-1). |
计算. (1)(-2)×(-)×(-3); (2)(-0.1)×1000×(-0.01); (3)2.3×4.1×0×(-7); (4)(-)×(-)××(-). |
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