cepat jawab besok dikumpul

78-(-27÷3)+5×(-4)=m
(-27÷3)=-8
5×(-4)=-9
78-(-8)+(-9)=77

1. 78 - (-27:3) + 5 × (-4) = m
78 - (-9) + (-20) = m
78 + 9 -20 = m
69 = m
2. 27 karung beras
(1 karung beras = 20kg)
23 karung jagung
(1 karung jagung = 25kg
27×20 = 540
23×25 = 575
Total = 540 + 575 = 1115kg
3. 30 = 2×3×5
40 = 2³×5
50 = 2×5²
FPB = 2×5
= 10
KPK = 2³×3×5²
= 8×3×25
= 600