
计算:(1)(-3)+(-4)-(+11)-(-9)=______(2)(-7)×(-5)-90÷(-3)=______(3)112÷(113?
计算:(1)(-3)+(-4)-(+11)-(-9)=______(2)(-7)×(-5)-90÷(-3)=______(3)112÷(113?34+56)=117117...
计算:(1)(-3)+(-4)-(+11)-(-9)=______(2)(-7)×(-5)-90÷(-3)=______(3)112÷(113?34+56)=117117(4)?14?(1?0.5)×13×[2?(?3)2]=1616
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(1)(-3)+(-4)-(+11)-(-9),
=-3-4-11+9,
=-9;
(2)(-7)×(-5)-90÷(-3),
=35+30,
=65;
(3)
÷(1
?
+
),
=
÷
,
=
;
(4)?14?(1?0.5)×
×[2?(?3)2],
=-1-
×
×(-7),
=
.
故答案为:(1)-9,(2)65,(3)
,(4)
.
=-3-4-11+9,
=-9;
(2)(-7)×(-5)-90÷(-3),
=35+30,
=65;
(3)
1 |
12 |
1 |
3 |
3 |
4 |
5 |
6 |
=
1 |
12 |
17 |
12 |
=
1 |
17 |
(4)?14?(1?0.5)×
1 |
3 |
=-1-
1 |
2 |
1 |
3 |
=
1 |
6 |
故答案为:(1)-9,(2)65,(3)
1 |
17 |
1 |
6 |
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