tính giá trị biểu thức
345+3339-647
234x6+847
64728+7369x7
đổi
1000000000000000m=.............................................km
7548 mm=............................................m
7092 dm=............................................cm
4628901 hm= ...............................................................dam
348mm=.......................................................................dam
345+3339-647
=3684-647
=3037
234x6+847
=1404+847
=2251
64728+7369x7
=64728+51583
=116311
1000000000000000=1000000000000km
7548 mm=7.548m
7092 dm=70920cm
4628901 hm=46289010dam
348 mm=0.00348dam