15•(7•4)=(15•4)•7=60•7=420
720÷(9•5)=720÷45=16
2.235•248=58280
1)
15*(7*4)=7*(15*4)=7*60=420
720/(9*5)=720/45=16
2)
235
*248
1880
+940
+470
58280
3)
_3893 |54
378 |72
_113
108
5
15•(7•4)=(15•4)•7=60•7=420
720÷(9•5)=720÷45=16
2.235•248=58280
1)
15*(7*4)=7*(15*4)=7*60=420
720/(9*5)=720/45=16
2)
235
*248
1880
+940
+470
58280
3)
_3893 |54
378 |72
_113
108
5