a.6×13+6×17 =6×( + ) =6× .
Mathématiques
lisasenga
Question
a.6×13+6×17 =6×( + ) =6× . b.1,4×11-1,4×9 =1,4×( - ) =1,4× . c.24×16+36×16 =( + ) ×16 = × 16
1 Réponse
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1. Réponse maudmarine
A = 6 × 13 + 6 × 17
A = 6 × (13 + 102 )
A = 6 × 115
A = 690
B = 1,4 × 11 - 1,4 × 9
B = 15,4 - 12,6
B = 2,8
C = 24 × 16 + 36 × 16
C = 384 + 576
C = 960