Sagot :
Réponse:
salut
Explications étape par étape:
A= 17.49 + 4.5 +1.01+5.7+5.3
= 17.49 + 1.01 + 4.5 +5.7+5.3
= 18.5 + 4.5 +5.7+5.3
= 23 + 5.7+5.3
= 23 + 11
= 34
B= 3099 + 401 + 47.3-7.3+23.9
= 3500+47.3-7.3+23.9
= 3500+ 40 + 23.9
=3540+ 23.9
= 3563.9