24+2 kali 10:4= (-8+3) kali 4-7= -3 kali 4+20:4= (-12-8)kali(3kali4)= 6 kali 7:21-8kali 2=

24 + 2 x 10 : 4 =
24 + 20 : 4 =
= 24 + 5 = 29

(-8+3) x 4-7 =
-5 x 4 - 7
= -20 - 7 = -27

-3 x 4 + 20 : 4 =
-12 + 5 = -7

(-12-8) x (3x4) =
-20 x 12 = -240

6 x 7 : 21 - 8 x 2 =
42 : 21 - 16 =
2 - 16 = - 14

Jawab =
24+2×10:4
= 24+5
= 29
(-8+3)×4-7
= -5×4-7
= -20-7
= -27
-3×4+20:4
= -12+5
= -7
(-12-8)×(3×4)
= -20×12
= -240
6×7:21-8×2
= 42:21-8×2
= 2-16
= -14
Seperti itu menurutku.