BELLA64 BELLA64 Mathématiques Answered 10: Calcule en décomposant. a. 71 x 25 =(71 × 20) + (71× 5) = .......... b. 86 x 12 = (86 x......) + (86 x......) c. 314 x 21 = (..................) + (.............….....) ....... + d. 123 x 203 = (..................) + (..................)