Resposta :
A)6,4+2,28 = 8, 68
B)2,1-0,85 = 1, 25
C)13,09+25,6 = 38, 69
D)10-8,4 = 1,6
E)5,7+19 = 24, 7
F)5,38+0,28 = 5, 66
G)8,1-6,5 = 1, 6
H)11,32-8,88 = 2, 44
I)0,751+6,45 = 7, 201
J)3,2+1,105 = 4, 305
K)2,25+1,917 = 4, 167
L)5-2,25 = 2, 75
A)6,4+2,28 = 8, 68
B)2,1-0,85 = 1, 25
C)13,09+25,6 = 38, 69
D)10-8,4 = 1,6
E)5,7+19 = 24, 7
F)5,38+0,28 = 5, 66
G)8,1-6,5 = 1, 6
H)11,32-8,88 = 2, 44
I)0,751+6,45 = 7, 201
J)3,2+1,105 = 4, 305
K)2,25+1,917 = 4, 167
L)5-2,25 = 2, 75