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(1)13+5=18
(2)-12+11=-1;
(3)45-91=-46;
(4)-5-5=-10;
(5) -3+2-6=-7;
(6)(-3)×(-8)=24 ;
(7)(-616)÷(-28);
(8) (-12)×(-3)=36;
(9) (-28)÷7=-4
(10) (-7) ×(-5)=35
(11)90÷(-15)=-6;
(12)(-1)*101=-101;
(13)-2-2=-4;
(14)(-2)3=-8;
(15)-7+2 =-5;
(16) (-7)*2=-14 ;
(17)(-3)/3=-1
(18)2×(-3)/2 =-3
(19)14-6÷(-2)-4·(-6)=41
(20)1-2×(-3)/2 =4
(21)[2×(-3)]2 =36
(22)4 -4 ÷ (— 2) × 22=12
(23)5/6 ÷1/3 ×(— 6)*2 +3 *2=99
(24)(-6)2 ×(2/3 — 1/2) — 23=-2
(25)(-2)*2=4,
(26)-5*2=-25,
(27)(-1)*5=-1,
(28)(-1)*4=1
(29)(-2)2-(-52)×(-1)5+87÷(-3)×(-1)4=-50
(30)(-66) × (1/2-1/3 ×5/11)=-23
(31)[1-3/5 ×(1-4/9) ×(-1)100]+(1-1/3)3=26/27
(32)25/24-[(3/8+1/3-3/4) ×24]2=1/24
(33)-2*3=-8
(2)-12+11=-1;
(3)45-91=-46;
(4)-5-5=-10;
(5) -3+2-6=-7;
(6)(-3)×(-8)=24 ;
(7)(-616)÷(-28);
(8) (-12)×(-3)=36;
(9) (-28)÷7=-4
(10) (-7) ×(-5)=35
(11)90÷(-15)=-6;
(12)(-1)*101=-101;
(13)-2-2=-4;
(14)(-2)3=-8;
(15)-7+2 =-5;
(16) (-7)*2=-14 ;
(17)(-3)/3=-1
(18)2×(-3)/2 =-3
(19)14-6÷(-2)-4·(-6)=41
(20)1-2×(-3)/2 =4
(21)[2×(-3)]2 =36
(22)4 -4 ÷ (— 2) × 22=12
(23)5/6 ÷1/3 ×(— 6)*2 +3 *2=99
(24)(-6)2 ×(2/3 — 1/2) — 23=-2
(25)(-2)*2=4,
(26)-5*2=-25,
(27)(-1)*5=-1,
(28)(-1)*4=1
(29)(-2)2-(-52)×(-1)5+87÷(-3)×(-1)4=-50
(30)(-66) × (1/2-1/3 ×5/11)=-23
(31)[1-3/5 ×(1-4/9) ×(-1)100]+(1-1/3)3=26/27
(32)25/24-[(3/8+1/3-3/4) ×24]2=1/24
(33)-2*3=-8
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