1) 345 + 543 = 888
2) 888 * 23 = 20424
3) 12327 + 21345 = 33672
4) 33672 : 23 = 1464
5) 20424 - 1464 = 18960
1) 345 + 543 = 888
2) 888 * 23 = 20424
3) 12327 + 21345 = 33672
4) 33672 : 23 = 1464
5) 20424 - 1464 = 18960