请你口算。(每题0.5分,共计8分) 0.38+0.06= (155+20)-65= 64.2+5.7= 543-27-73= 0.97-0.09= 12.8-9.86= 17.05-4.58 = 9800÷25÷4= 3.5+0.6= 5-0.15= 4.35+5.36= 99×66+66= 0.81+0.09= 0÷78= 50-20÷5= 35×25×4=
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