454+454 + 454

(a)  

679,090 – 148,990

(a)  

91 + 28 – 33

(a)  

540 – 330 + 110

(a)  

151 X 29

(a)  

 $33,044\div11$   

(a)  

(15 + 60) – 15

(a)  

 $(232\times84)\div84$  

(a)  

39,209 + 2,602

(a)