guys tolong bantu saya jawab soal di bawah ini!!! 1. 9,5 m + 25 dm =.................cm 2. 16 hm - 7,5 dam =.................m 3. 85,5 dam - 8 dm - 125 cm=.....

1.) 9,5 m + 25 dm =
9,5 x 100 + 25 x 10 =
950 + 250 = 1200 cm

2.) 16 hm - 7,5 dam  =
16 x 100 - 7,5 x 10 =
1600 - 75 = 1525 m

3.) 85,5 dam - 8 dm - 125 cm =
85,5 x 1000 - 8 x 10 - 125 =
85500 - 80 - 125 = 85295 cm

4. Faktor" :
50 = 2 x 5^2
80 = 2^4 x 5

FPB : ambil faktor yang sama dan pangkat terkecil
= 2 x 5
= 10

KPK : ambil faktor yg sama dan beda, untuk faktor yg sama ambil pangkat terbesar
= 2^4 x 5^2
= 400

5.) 6 abad + 25 dasawarsa - 10 lustrum =
6 x 100 + 25 x 10 - 10 x 5 =
600 + 250 - 50 =
800 tahun

6.) 4 dekade + 8 windu + 12 caturwulan =
4 x 10 + 8 x 8 + 12/4 =
40 + 64 + 3 =
107 tahun

semoga membantu:)

1. 9,5 m + 25 dm = ... cm
= ( 9,5 m × 100 ) + ( 25 dm × 10 )
= 950 cm + 250 cm
= 1.200 cm
2. 16 hm - 7,5 dam = ... m
= ( 16 hm × 100 ) - ( 7,5 dam × 10 )
= 1600 m - 75 m
= 1.525 m
3. 85,5 dam - 8 dm - 125 cm = ... cm
= ( 85,5 dam × 1000 ) - ( 8 dm × 10 ) - 125 cm
= 85.500 cm - 80 cm - 125 cm
= 85.420 cm - 125 cm
= 85.295 cm
4. 50 : 2 = 25 : 5 = 5
80 : 2 = 40 : 2 = 20 : 2 = 10 : 2 = 5

50= 2×5×5
80= 2×2×2×2×5

atau

[tex]50 = 2 \times {5}^{2} \\ 80 = 2 ^{4} \times 5[/tex]
KPK=
[tex] {2}^{4} \times 5 {}^{2} = \\ 16 \times 25 = 400[/tex]
FPB=
[tex]2 \times 5 = 10[/tex]
yang 5 sama 6 nggak bisa...
maaf ya... ^_^