Вычисли удобным способом:
420:(10*7)=
5400:(100*3)=
7200:(9*4)=
420:10и*7=294
5400:100и*3=162
7200:9и*4=3200
420:(10*7)=6
1)10*7=70
2)420:70=6
5400:(100*3)=18
1)100*3=300
2)5400:300=18
7200:(9*4)=200
1)9*4=36
2)7200:36=200
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420:10и*7=294
5400:100и*3=162
7200:9и*4=3200
420:(10*7)=6
1)10*7=70
2)420:70=6
5400:(100*3)=18
1)100*3=300
2)5400:300=18
7200:(9*4)=200
1)9*4=36
2)7200:36=200