Tolong Kak. Pakai Cara ​

7. = 256 permen + 128 permen – 141 permen
= 364 permen – 141 permen
= 243 permen (d)

8. b. 3 orang
15 dan 21 hanya bisa dibagi 3
15 : 3 = 5
21 : 3 = 7

9. = 20 kg + 3.000 gr
= 20 kg + (3.000 gr : 1.000)
= 20 kg + 3 kg
= 23 kg (c)

10. = a x t / 2
= 6 cm x 8 cm / 2
= 48 cm2 / 2
= 24 cm2 (a)

11. = 2 / 2 + 4 x 30
= 2 / 6 x 30
= 2 x 5
= 10 pohon (c)