bantu kak, maaf tulisan nya kurang rapi,bantu jawab ya kak, soal nya besok mau di kumpul
Jawab:
Penjelasan dengan langkah-langkah:
1a. -15
1b. 12
1c. -5
1d. -25
1e. 3 + (4+2)
1f. 7 x (5 x (-2))
1g. (7 x (-5)) + (7 x 2)
1h. ((-12) x 4) - ((-12) x (-5)
2a. 4 = (-3)
2b. -2 + 5 = 5 + (-2) = 3
2c. 5 = (-10)
2d. (-45) x 7 = 7 x (-45) = (-315)
3a. 5 + (4 + (-10)) = (-1)
3b. 7 + ((-12) + 15) = 10
3c. (-8) x (5 x 4) = -160
3d. 10 x (10 x (-2)) = (-200)
4a. (4 x 2) + (4 x 3) = 20
4b. ((-2) x 3) + ((-2) x 5) = (-16)
4c. ((-11) x 7) - ((-11 x 8) = 11
4d. (25 x 8) - (25 x 7) = 25
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