Resposta :
Resposta:
10 × 89 = 890 10 × 90 = 900 (9,00Rs)
890 + 9 = 899
100 × 89 = 8900 100 × 90 = 9.000 (90,00Rs)
8.900 + 90 = 8990
1000 × 89 = 89000 1000 × 90 = 90.000 (900,00Rs)
89.000 + 900 = 89.900
Resposta:
10 × 89 = 890 10 × 90 = 900 (9,00Rs)
890 + 9 = 899
100 × 89 = 8900 100 × 90 = 9.000 (90,00Rs)
8.900 + 90 = 8990
1000 × 89 = 89000 1000 × 90 = 90.000 (900,00Rs)
89.000 + 900 = 89.900