题目
计算:(直接写结果) (1) - 5+ 2 = (2) -5-2= (3) 5-(-2)= (4) (-5)×(-2)= (5) (-2)÷(-6)= (6) = (7) = (8) = (9) = (10) = 答案:解:- 5+ 2 =-(5-2)=-3;
解:-5-2=-(5+2)=-7
解:5-(-2)= 5+2=7
解:(-5)×(-2)= 5×2=10
解:(-2)÷(-6)=2÷6= 13
解: (−2)3 =-23=-8
解: (34)2 = 34×34=916
解: 13−12 =-( 12−13 )=- 16
解: 34×(−223) =- 34×83 =-2
解: (−20)÷(−313) = 20÷313 = 20×310=6I want him to go with us ________ he doesn't.A.evenB.ifC.even ifD.if even