Oblicz:
a) -(-1/2)x(-8)+8 1/2:(-2/3)
b) -3x5,5+2,2-(6,4):2
a)-(-½)·(-8)+8½÷(-⅔)=
=-4+(-12¾)=
=-4-12¾=
=-16¾
b)-3·5,5+2,2-(6,4)÷2=
=-16,5+2,2-6,4÷2=
=-14,3-3,2=
=-17,5
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a)-(-½)·(-8)+8½÷(-⅔)=
=-4+(-12¾)=
=-4-12¾=
=-16¾
b)-3·5,5+2,2-(6,4)÷2=
=-16,5+2,2-6,4÷2=
=-14,3-3,2=
=-17,5