Odpowiedź:
Szczegółowe wyjaśnienie:
=7+2=9
=4+11=15
= -9
=-20
=(-1 9/12)+8/12= -1 1/12
=2 10/12+3 3/12=5 13/12=6 1/12
=-3 5/15 +5 3/15=-3 5/15 +4 18/15=1 13/15
= -1 5/10-6 6/10=-7 11/10= -8 1/10
=-2,5+2,25= -0,25
=8,4+5,2=13,6
=9 5/8 -10 8/8= -1 3/8
= -5 18/22+1 13/22= -4 13/22
__________________
=-8 -5+7-13+10-6=-13+7-13+10-6=-6-13+10-6=-19+10-6=-9-6=-15
=24+30-62+18-41+70=54 -62+18-41+70= -8+18-41+70=10-41+70=-31+70=-39
=-(12-5)-(17+3)= -7-10=-17
=-12,5+4,8-8,7-6,4=-7,7-8,7-6,4= -16,4-6,4=-22,8
=-6,5+2,25-3,5+4,2+4,75= -4,25-3,5+4,2+4,75=-7,75+4,2+4,75=-3+4,2=1,2
=5,4+1,2+6,5-3,25-7,1=13,1-3,25 -7,1=6-3,25=2,75
=3,5+4,25-3 1/3=7,75 -3 1/3=7 3/4 -3 1/3 =7 9/12 -3 4/12=4 5/12
