1.-18-(-20)=.... - Universityku

2.(1,5-2/4)×2/3=….
3.keliling=2×3,14×10=….
KAK TOLONG DIJAWAB YA SOALNYA BUAT BESOK DIKUMPULIN JAM 06.30
JANGAN NGASAL YA PLISSS CEPTTTTT

1.-18-(-20)=….

No. 1

-18 – (-20)
= -18 + 20
= 20 – 18
= 2

No. 2

$bf(1, 5 - frac{2}{4} ) times frac{2}{3} = ( frac{15}{10} - frac{2}{4} ) times frac{2}{3} \bf = ( frac{30 - 10}{20} ) times frac{2}{3} = frac{cancel20}{cancel20} times frac{2}{3} = frac{2}{3}$

No. 3

K = 2 × 3,14 × 10
K = 6,28 × 10
K = 62,8 × 1
K = 62,8