efectuar las siguientes operaciones combinadas
a) 8×4+16+20÷4+24,5
b) 81÷9-19,5×5+25,2
a) 8×4+16+20÷4+24,5
b) 81÷9-19,5×5+25,2
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Respuesta:
a) 8x4+16+20÷4+24,5 es= 77,5
b)81÷9-19,5x5+25,2 es= - 63,3