a)22,56 – 7,59 – 8,41
=22,56-(7,59+8,41)
=22,56-16
=6,56
b) 53,48 – 19,84 – 22,16
=53,48-(19,84+22,16)
=53,48-42
=11.48
c) 14,23 + 7,06 – 1,23
=(14,23-1,23)+7,06
=13+7,06
=20.06
d)20,06 – 12,37 – 7,63
=20,06-(12.37-7,63)
=20,06-20
=0,06
a, \(22,56-7,59-8,41\\ =22,56-\left(7,59+8,41\right)\\ =22,56-16=6,56\)
b, \(53,48-19,84-22,16\\ =53,48-\left(19,84+22,16\right)\\ =53,48-42=11,48\)
c, \(14,23+7,06-1,23\\ =\left(14,23-1,23\right)+7,06\\ =15+7,06=22,06\)
d, \(20,06-12,37-7,63\\ =20,06-\left(12,37+7,63\right)\\ =20,06-20=0,06\)