Realizar as operações indicadas e confirmar as respostas.
(a) 3, 9 × 8, 2 = 31, 98
(b) 2, 315 × 6 = 13, 89
(c) 26, 45 ÷ 5 = 5, 29
(d) 4 5 x 3 7 = 1665
(e) 6 7 x 5 3
(f) 2 5 ÷ 8 7
g) 7 9 ÷ 3 16