A-A+
计算:(1)0.47-456-(-1.53)-116;(2)(910-115+16)×(-3
问题详情
计算:
(1)0.47-4
(2)(
(3)-15-[-1-(4-20)];
(4)(
(5)16÷(-2)-(-
(6)
(7)100+16÷(-2)4-
(8)-14-[2-(1-
参考答案
(1)原式=(0.47+1.53)+(-456-116)
=2-6
=-4;
(2)原式=-910×30+115×30-16×30
=-27+2-5
=-30;
(3)原式=-15-[-1-(-16)]
=-15-(-1+16)
=-15-15
=-30;
(4)原式=-16×45×10×103
=-409;
(5)原式=-8+18×16-1
=-8+2-1
=-7;
(6)原式=1-12+12-13+…+11999-12000
=1-12000
=19992000;
(7)原式=100+16÷16-15×25-100
=100+1-5-100
=-4;
(8)原式=-1-[2-(1-13×12)]×[9-4]
=-1-[2-(1-16)]×5
=-1-116×5
=-1-556
=-656.
考点: