tolong jawab soal nomor 3 dan 4

[tex]120 \div ( - 8) = ( - 15) \times 3 = ( - 45) + 20 = ( - 25) \\ \frac{18}{10} + \frac{9}{4} = \frac{36 + 45}{20} = \frac{81}{20} - \frac{3}{5} = \frac{81 - 12 }{20} = \frac{69}{20} = 3 \times \frac{9}{20} [/tex]

 

Mapel Matematika

Kelas VI

Bab Bilangan dan Pecahan

 

Jawaban:

 

3. 120 : (-8) x 3 + 20 = n

= -15 x 3 + 20

= -45 + 20

= -25

 

Jawaban : A

 

4. 1,8 + 2 ¼ = 1,8 + 2,25 = 4,05 kg

 

4,05 kg  - … = 3/5 kg

4,05 – 0,6 = 3,45 = 3 9/20 kg

 

Jawaban : A