-2^6÷(-2)^4-3^2÷(-1又2/7)
解:原式等于 -64÷16-9÷(-9/7)
=-4-9÷(-9/7)
=10又1/9
(-2又1/2)^2+(-0.5)^3×(-2)^2×(-8)
解:原式等于 6.25+(-0.125)×4×(-8)
=5.75×(-8)
=-46
解
-2^6÷(-2)^4-3²÷(-1又2/7)
=-64÷16-9÷(-9/7)
=-64×1/16-9×(-7/9)
=-(64×1/16)+9×7/9
=-4+7
=7-4
=3
(-2又1/2)²+(-0.5)³×(-2)²×(-8)
=(-5/2)²+(-1/2)³×4×(-8)
=25/4+(-1/8)×4×(-8)
=25/4+(1/8)×4×8
=25/4+4
=25/4+16/4
=41/4
-(-2)²-3÷(-1/2)³+0×(3/2-3)³×(-1/3)^5
=-4-3÷(-1/8)+0
=-4-3×(-8)
=-4+24
=24-4
=20
-2^6÷(-2)^4-3^2÷(-1又2/7)
=-2^2-3^2÷(-9/7)
=4-9*(-7/9)
=4+7=11
(-2又1/2)^2+(-0.5)^3×(-2)^2×(-8)
=(-5/2)^2+(-1/2)^3*(-2)^2*(-2)^3
=25/4+(-1/2*(-2))^3*(-2)^2=25/4+4=10又1/4
-2^6=-64
-2^6÷(-2)^4=-64/(-2)^4=-4
-2^6÷(-2)^4-3^2÷(-1又2/7)=-4÷(-1又2/7)=7*4/9=28/9