1) (2786+886):8=459
1. 2786+886=3672
2. 3672:8=459
2) (3967+965)/9=548
1. 3967+965=4932
2. 4932/9=548
3) 1. 2012-968=1044
2. 1044/12=87
4) 1. 2213-897=1316
2. 1316/14=94
5) 38*43-134=1500
1. 38*43=1634
2. 1634-134=1500
6) 47*26-122=1100
1. 47*26 =1222
2. 1222-122=1100