a) 40 + 60 =
B) 20 + (+15) =
д) 0,3 + 0,7 =
ж) +1,2 + (+0,6
и) +0,6 + (+0,
6) -40+ (-60) =
г) -20 + (-15) =
e) -0,3 + (-0,7):
3) -1,2+(-0,6)=
K) -0,6+ (-0,6)
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