Réponses

2014-06-11T13:09:36+02:00
258:8= 129/4 = 32,25

123-157= -34

147852369-2458 = 11 478 499 911

78=63+ 15
2014-06-11T13:36:27+02:00
258 : 8 = 2 x 129 / 2 x 4 = 129/4 = 32,25

123 - 157 = - 34

147 852 369 - 2458 = 147 849 911

78 = 63 + 15