Obilcz jak najprostszym sposobem:
e) -42,7+(-13,6)+12,7=
f)-3,72-2,69+0,69=
g)7,25-10 5/7- 2 1/4=
h) 12 5/11 - 5,6 - 13 5 /11=
i)2 4/7 - 5 2/3 + 2/5 - 2 4/7 - 1/3 - 2/5=
j) -1 2/3 + 5/8 -6+ 2/3- 1/8- 1/2=
k) -5 3/5 - 2 3/4+ 3 4/7+ 3/5+ 1 3/4- 2 1/7=
l)2,4 -0,72-6,173-1,4+0,173+0,72=
m) -3,14+2,6-6,27+2,14+1,4+1,27=
n) -7,2+1,42-12,13+0,58-2,8+2,13=
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e) -42,7+(-13,6)+12,7=-42,7-13,6+12,7=-43,6
f)-3,72-2,69+0,69=-5,72
g)7,25-10 5/7- 2 1/4=7 1/4-10 5/7-2 1/4=7 1/4-2 1/4-10 5/7=5-10 5/7=-5 5/7
h) 12 5/11 - 5,6 - 13 5 /11=12 5/11-13 5/11-5,6=-1-5,6=-6,6
i)2 4/7 - 5 2/3 + 2/5 - 2 4/7 - 1/3 - 2/5=2 4/7-2 4/7+2/5-2/5-5 2/3-1/3=-6
j) -1 2/3 + 5/8 -6+ 2/3- 1/8- 1/2=-5/3+2/3+5/8-1/8-6-1/2=-3/3+4/8-6-1/2=-1+1/2-6-1/2=-7
k) -5 3/5 - 2 3/4+ 3 4/7+ 3/5+ 1 3/4- 2 1/7=-5-1+1 3/7=-4 4/7
l)2,4 -0,72-6,173-1,4+0,173+0,72=-5,000
m) -3,14+2,6-6,27+2,14+1,4+1,27=-2,00
n) -7,2+1,42-12,13+0,58-2,8+2,13=-18,00