(-13)+(-15)= (-1/2)+(+1/3)= 8+(-8)= [8+(-5)]+(-4)(-13)+(-15)=(-1/2)+(+1/3)=8+(-8)=[8+(-5)]+(-4)=[(-4)+3]+(-6)=[2+(-5)+5]=

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(-13)+(-15)= (-1/2)+(+1/3)= 8+(-8)= [8+(-5)]+(-4)(-13)+(-15)=(-1/2)+(+1/3)=8+(-8)=[8+(-5)]+(-4)=[(-4)+3]+(-6)=[2+(-5)+5]=
(-13)+(-15)= (-1/2)+(+1/3)= 8+(-8)= [8+(-5)]+(-4)
(-13)+(-15)=
(-1/2)+(+1/3)=
8+(-8)=
[8+(-5)]+(-4)=
[(-4)+3]+(-6)=
[2+(-5)+5]=

(-13)+(-15)= (-1/2)+(+1/3)= 8+(-8)= [8+(-5)]+(-4)(-13)+(-15)=(-1/2)+(+1/3)=8+(-8)=[8+(-5)]+(-4)=[(-4)+3]+(-6)=[2+(-5)+5]=
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()内填适当符号 (1):( )2+(-11)=-13 (2):( )7+7=0 (3):(-10)+( )15=-23 (-13)+(-15)= (-1/2)+(+1/3)= 8+(-8)= [8+(-5)]+(-4)(-13)+(-15)=(-1/2)+(+1/3)=8+(-8)=[8+(-5)]+(-4)=[(-4)+3]+(-6)=[2+(-5)+5]= 7+()=4 (-9)+()=9 12=()=0 (-8)=()=-15 ()=(-13)=-6写出下列格式的值:(-2)=(-2) (-2)+(-2)+(-2)(-2)+(-2)+(-2)+(-2) (-2)+(-2)+(-2)+(- (-13)乘15分之2-26×15分之8+13×5分之1 数字推理-2 -1  1  5 () 2917 15 13 11 1.-3.5×35.2+(-7)×32.4=?2.(-6/5)×83+(-6/5)×(-13)-1.-3.5×35.2+(-7)×32.4=?2.(-6/5)×83+(-6/5)×(-13)-(-6/5)-(6/5)×28=?3.(-2/3)×(-15/11)-2/3×(-15/13)+2/3×(-15/14)=?4.36/1/( 1、|(11/12)-(12/13)|+|(12/13)-(13/14)|+|(13/14)-(14/15)|+|(14/15)-(15/16)|2、0.0125*(16/5)-(1/7)*(-87.5)/(15/16)*(16/15)+(-2)²-43、(1/2)+1+(1/2)=2,(1/3)+(2/3)+1+(2/3) 计算.直接写得数(1)1÷1/5=(2)1/2×1/2=(3)1/5-1/6=(3)4/7-(4/7-2/7)=(4)0.8×5/8=(5)10+4/5=(6)13×13/15=(7)10-1×1/4= 7分之1×()=()÷13分之1=()×0.875=()×75%=13又26分之9-()=2 (x+4)+2(7-x)=13 4(2x-9)-3(x-15)=7(x-1)-2 -7+13-6+20= (-49)-(+91)-(-5)+(-9)= 1+(-2)+|-2-3|-5= (-5)x(-7)-5x(-6)= -18÷(-3)²+5×(-2分之1)³-(-15)÷5 16×( )=13分之7×( )=13分之7-( )×0.3=1 (2/3-1/12-1/15)X(-60) 一.1)在1——100中,有( )个数是3的倍数.2)1000-81-11-82-12-83-13-84-14-85-15-86-16-87-17-88-18-89-19=?二、在下方算式中适合的地方,添上+、-、×、÷或( ),是算式成立.1 |-3-2|减【(-5)-(-7)+1/3】=? -13×2/3-5/7×0.35-1/3×(-13)-2/7×0.35