Jawaban:
[tex]\bf\large1.\ 17\ jam\ 24\ menit\ 12\ detik[/tex]
[tex]\bf\large2.\ 12\ jam\ 21\ menit\ 11\ detik [/tex]
[tex]\bf\large3.\ 4.530.010\ cm [/tex]
[tex]\bf\large4.\ 90\ ons [/tex]
[tex]\bf\large5.\ 38\ ons [/tex]
Penjelasan dengan langkah-langkah:
[tex]1.\ \sf12\ jam + 36\ menit + 45\ detik [/tex]
[tex]\quad\ \ \sf4\ jam + 47\ menit + 27\ detik [/tex]
--------------------------------------------------- +
[tex]\quad\ \ \sf17\ jam + 24\ menit + 12\ detik [/tex]
[tex]\\[/tex]
[tex]2.\ \sf6\ jam + 42\ menit + 50\ detik [/tex]
[tex]\quad \sf5\ jam + 38\ menit + 21\ detik [/tex]
------------------------------------------------ +
[tex]\quad \sf12\ jam + 21\ menit + 11\ detik [/tex]
[tex]\\[/tex]
[tex]3.\ \sf 3\ hm + 45\ km + 10\ cm = 4.530.010\ cm [/tex]
Penjelasan;
[tex]\sf\large1\ hm = 10.000\ cm,\ maka; [/tex]
[tex]\sf\large3 × 10.000\ cm = 30.000\ cm [/tex]
[tex]\sf\large1\ km = 100.000\ cm,\ maka; [/tex]
[tex]\sf\large45 × 100.000\ cm = 4.500.000\ cm,\ jadi; [/tex]
[tex]\sf30.000\ cm + 4.500.000\ cm + 10\ cm = 4.530.010\ cm [/tex]
[tex]\\[/tex]
[tex]4.\ \sf\large5\ kg + 20\ ons + 4\ pons = 90\ ons [/tex]
Penjelasan;
[tex]\sf\large1\ kg = 10\ ons,\ maka; [/tex]
[tex]\sf\large5 × 10\ ons = 50\ ons [/tex]
[tex]\sf\large1\ pons = 5\ ons,\ maka; [/tex]
[tex]\sf\large4 × 5\ ons = 20\ ons,\ jadi; [/tex]
[tex]\sf\large50\ ons + 20\ ons + 20\ ons = 90\ ons [/tex]
[tex]\\[/tex]
[tex]5.\ \sf\large2½\ kg + ½\ kg + 8\ ons = 23\ ons [/tex]
Penjelasan;
[tex]\sf\large1\ kg = 10\ ons,\ maka; [/tex]
[tex]\sf\large2½ × 10\ ons = 25\ ons [/tex]
[tex]\sf\large½\ kg = 5\ ons,\ jadi; [/tex]
[tex]\sf\large25\ ons + 5\ ons + 8\ ons = 38\ ons [/tex]
