Respuesta :

7.5 + 9.2

= 7.0 + 0.5 + 9.0 + 0.2

= 7.0 + 9.0 + 0.5 + 0.2

= 16.0 + 0.7

= 16.7

Yes, it's a reasonable sum - and the calculation above you demonstrates why.

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