58.75 + 58.25
=58.(75+25)
=58.100=5800

27.102 – 2.27
=27.(102-2)
=27.100=2700

128.46 + 128.32 + 128.2
=128.(46+32+2)
=128.80=10240

• 48.19 + 48.81 + 52
  =48.(19+81)+52
  =48.100+52
  =4800+52=4852

• 27.121 – 87.27 + 73.34
  =27.(121-87)+73.34
  =27.34+73.34
  =34.(27+73)
  =34.100=3400

• 125.98 – 125.46 – 52.25
  =125.(98-46)– 52.25
  =125.52– 52.25
  =(125-25).52
  =100.52=5200

58.75 + 58.25
=58.(75+25)
=58.100=5800

27.102 – 2.27
=27.(102-2)
=27.100=2700

128.46 + 128.32 + 128.2
=128.(46+32+2)
=128.80=10240

48.19 + 48.81 + 52
=48.(19+81)+52
=48.100+52
=4800+52=4852

27.121 – 87.27 + 73.34
=27.(121-87)+73.34
=27.34+73.34
=34.(27+73)
=34.100=3400

125.98 – 125.46 – 52.25
=125.(98-46)– 52.25
=125.52– 52.25
=(125-25).52
=100.52=5200