tolong di jawab ya pakai cara

1) A. sifat Asosiatif
2)16 × 0 + 104 : 4 - 22 =
Jawab :
16 × 0 = 0
104 : 4 = 26
0 + 26 - 22 = 4 = C
3) 17×4+-27÷-3=
Jawab :
17 × 4 = 68
-27 : -3 = 9
68 + 9 = 77 = B
4)- 21 ×3:7.....10+4-13
-21 ×3 = -63 : 7 = -9
10 + 4 - 13 = 1
Jadi jawabannya
6) 2197 = 13 ×13×13
1331 = 11×11×11
13 - 11 = 2 =D
11) yg digambar, jawabannya C
18) 870 detik + 6 menit =
6 × 60 = 360
360 + 870 = 1230
1230 ÷ 60 = 20.5 = A