TOLONG PAKAI CARA..TERIMA KASIH

4. 40 soal
Benar = 4
Salah = -2
Tdk dijawab = -1
Jawab 36, benar 30, brrt kosong 4, salah 6
Benar = 30x4 = 120
Kosong = 4x-1 = -4
Salah = 6x-2 = -12
Skor = 120-4-12 → 104 (A)
5. 2/3+12/25x5/6
=2/3+2/5 = 10/15+6/15 = 16/15 → 1 1/15 (D)
6. 15/1-27/4-28/5
= 300/20-135/20-112/20
=53/20
=2 13/20 (B)
7. 14/3 :7/6
=14/3 x 6/7
=4 (C)