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90-7×8+24:6×8-6×9??????????????????​

Răspuns :

▪Răspuns :

• 90 - 7 × 8 + 24 : 6 × 8 - 6 × 9 = 12
= 90 - 56 + 24 : 6 × 8 - 6 × 9
= 90 - 56 + 4 × 8 - 6 × 9
= 90 - 56 + 32 - 6 × 9
= 90 - 56 + 32 - 54
= 34 + 32 - 54
= 66 - 54
= 12
90 - 7 × 8 + 24 : 6 × 8 - 6 × 9 =

90 - 56 + 4 × 8 - 54 =

90 - 56 + 32 - 54 =

34 + 32 - 54 =

66 - 54 = 12