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1 gros=12 lusin=144 buah
1 rim=500 lembar
1 kodi=20 buah
* 12+2=14
* 48+36=84
* 60+15=75
*1000+24=1024
* 144+ 60+8=212
1/3×144=48+36=84=7 lusin
3×20=60-15=45
2×500=1000-24=976
1×144=144-5=149+8=157