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3 Calculează: a) 235.47 + 165.74 +235.53 + 165.26; b) 5 376.453 +4 624.298 +4624.702 +5 376.547; c) 357.459 +459.321 +678.541.
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Răspuns :

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Răspuns:

a) 235·47+165·74 +235·53 + 165·26=11045+12210+12455+4290=40000

b) 5376·453+4624·298+4624·70+5376·547=

2435328+1377952+323680+2940672=7077632

c) 357·459 +459·321 +678·541=163863+147339+366798=678000

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