Pertanyaan

Kerjakan perkalian desimal berikut ! 1. 0 , 1 × 0 , 25 = … 2. 0 , 45 × 2 , 4 = … 3. 1 , 4 × 1 , 02 = … 4. 1 , 6 × 0 , 45 = …

Kerjakan perkalian desimal berikut !

1. $0, 1 \times 0, 25 = \dots$

2. $0, 45 \times 2, 4 = \dots$

3. $1, 4 \times 1, 02 = \dots$

4. $1, 6 \times 0, 45 = \dots$

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Y. Endah

Master Teacher

Mahasiswa/Alumni Institut Teknologi Bandung

Jawaban terverifikasi

Pembahasan

1. Perhatikan Jadi, . 2. Perhatikan Jadi, . 3. Perhatikan Jadi, . 4. Perhatikan Jadi,

1. Perhatikan

table attributes columnalign right center left columnspacing 0px end attributes row cell 0 comma space 1 cross times 0 comma 25 end cell equals cell 1 over 10 cross times 25 over 100 end cell row blank equals cell 25 over 1000 end cell row blank equals cell 0 comma 025 end cell end table

Jadi, 0 comma space 1 cross times 0 comma 25 equals 0 comma 025 .

2. Perhatikan

$table attributes columnalign right center left columnspacing 0px end attributes row cell 0 comma space 45 cross times 2 comma space 4 end cell equals cell 45 over 100 cross times 24 over 10 end cell row blank equals cell fraction numerator 1.080 over denominator 1000 end fraction end cell row blank equals cell 1 comma 08 end cell end table$

Jadi, 0 comma space 45 cross times 2 comma space 4 equals 1 comma 08 .

3. Perhatikan

table attributes columnalign right center left columnspacing 0px end attributes row cell 1 comma space 4 cross times 1 comma space 02 end cell equals cell 14 over 10 cross times 102 over 100 end cell row blank equals cell 1428 over 1000 end cell row blank equals cell 1 comma 428 end cell end table

Jadi, 1 comma space 4 cross times 1 comma space 02 equals 1 comma 428 .

4. Perhatikan

table attributes columnalign right center left columnspacing 0px end attributes row cell 1 comma space 6 cross times 0 comma space 45 end cell equals cell 16 over 10 cross times 45 over 100 end cell row blank equals cell 720 over 1000 end cell row blank equals cell 0 comma 72 end cell end table

Jadi, 1 comma space 6 cross times 0 comma space 45 equals 0 comma 72