= (27,84+4,16) + (31,3+5,7)
= 32 + 37 = 69
\(27,84+31,3+4,16+5,7\)
\(=\left(27,84+4,16\right)+\left(31,3+5,7\right)\)
\(=32+37\)
\(=69\)
27,84 + 31,3 + 4,16 + 6,7
= (27,84 + 4,16) + (31,3 + 6,7)
= 32 + 38
= 70
27,84 + 31,3 + 4,16 + 5,7
= (27,84 + 4,16) + (31,3 + 5,7)
= 32 + 37
= 69
27.84 + 31.3 + 4.16 + 5.7
=[27.84+4.16] + [31.3+5.7]
= 32 + 37
= 69