Tính:
a) \(605,26 + 217,34\);
b) \(800,56 - 384,48\);
c) \(16,39 + 5,25- 10,3\).
c) Cách 1: \(16,39 + 5,25 - 10,3 \)\(= 21,64 - 10,3= 11,34\)
Cách 2: \(16,39 + 5,25 - 10,3\)\( = 16,39 - 10,3 + 5,25 = 6,09 + 5,25\)\(= 11,34\)
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