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kelas : 5
materi : satuan panjang
rumus :
km
hm
dam
m
dm
cm
mm
penyelesaian masalah :
430 dm + 27 dam =.... m
=dm ke m naik satu kali, dan dam ke m turun satu kali
jadi 430 : 10 = 43
27 ×10 = 270
= 43 + 270
=313 m