kali ini kita akan membahas soal berikut nya… Kerjakan soal berikut. 1. (+9) × (+4) 2. (+6) × (-7) 3. (-5) × (+10) 4. (-13) × (-2) 5. (+2/5) × (-15) 6. (-3/4) × (-7/12) Pembahasan: 1. (+9) × (+4) = 9 × 4 = 36 2. (+6) × (-7) = -(6 × 7) = -42 3. (-5) × …
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