1) 716 + (952-574) :27 = 730
1. 952-575= 378
2. 378 : 27 = 14
3. 716 + 14 = 730
2) (625- 596) * (901-867) = 986
1. 625 - 596 = 29
2. 901 - 867 = 34
3. 29*34= 986
3) 2 215 : (128+315) * 86 = 430
1. 128 + 315 = 443
2. 2215 : 443 = 5
3. 5 * 86 = 430
4) (522+723) : (923 - 517) * 57 = 171
1. 522+723=1245
2. 923-517=415
3. 1245:415=3
4. 3*57= 171