Jawaban:
maaff ya kalo salhhhhhhhhh
Materi : Pecahan
Soal Nomor 2
Bagian B
0,58 + 1,2 + 6/15 - 1,6
= 0,58 + 1,20 + 0,20 + 1,60
= (0+1),(5+2+2+6)(8+0+0+0)
= 1,(15)(8)
= (1+1),(5)(8)
= 2,58
Bagian C
0,42 ÷ 0,6 - 0,65 × 1/13
= 42/10 × 10/6 - 65/100 × 1/13
= 42/6 - 5/100
= 7 - 0,05
= 6,95
Soal Nomor 3
Bagian A
2 - 0,68 + 1,25 ÷ 0,5
= 1,32 + 125/100 × 10/5
= 1,32 + 25/10
= 1,32 + 2,5
= 3,82
Bagian B
0,4 × 1,26 + 0,72 ÷ 8
= 4/10 × 126/100 + 72/100 × ⅛
= 4(126)/1000 + 9/100
= 504/1000 + 9/100
= 0,504 + 0,09
= 0,594
Bagian C
9 × 0,2 - 1,6 ÷ 4
= 9 × 2/10 - 16/10 × ¼
= 18/10 - 4/10
= 1,8 - 0,4
= 1,4
Soal Nomor 4
K = 2( p + l )
3K = ( 2 × 3 )( 12 m + 8,5 m )
3K = 6( 20,5 m )
3K = 120 + 3,0 m
3K = 123 m
Soal Nomor 5
3,5 + 1¼ - 2 - 2,5
= ( 3 + 1 - 2 - 2 ),(5+2-5)(0+5-0)
= ( 4 - 4 ),(2)(5)
= 0,25
Semoga bisa membantu
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