Răspuns:
1. 452
2.7 319×13=95 147
95 147:7 319=13rest0
4.133:7=19 drumuri
5.1 360:16=85
6.×:4=2015
×=2015×4
×=8060
8060:4=2015
7.98:×=7
×=98:7
×=14
98:14=7