填空:
(1)______+11=27;
(2)7+______=4;
(3)(-9)+______=9;
(4)12+______=0;
(5)(-8)+______=-15;
(6)______+(-13)=-6.
网友回答
解:(1)∵27-16=11,∴16+11=27;
(2)∵4-(-3)=7,∴7+(-3)=4;
(3)∵9-(-9)=18,∴(-9)+18=9;
(4)∵0-12=-12,∴12+(-12)=0;
(5)∵-15-(-8)=-7,∴(-8)+(-7)=-15;
(6)∵-6-(-13)=7,∴(7)+(-13)=-6.
故