bonjour
a) 8 × 1000 + 7 + 5 / 100 + 6 / 1000
8007 + 56 / 1000
8063 / 1000 = 8,063
b) 4 × 10000 + 5 × 10 + 3/10 + 8/10000
40000 + 50 + 3/10 + 8/10000
40050 + 3/10 + 8/10000
40050 + 3008/10000
43058 / 10000 = 4,3058
c) 63 × 100 + 2 + 8/10 + 3/100
6302 + 8/10 + 3/100
6302 + 83/100
6385/100 = 63,85
merci