Jawab yaa 15 sampe 19

(15) 7000-300= 6700. 6700+500= 7.200 (a)
(16) ‣ Ayah: 100:2= 50 thn
‣ ibu: 8×6= 48 thn
‣ rudi: 18 thn.
50+48=98+18=116. (B)
(17) 12.000 – 800 = 11.200 – 500 = 10.700 (D)