![]() 300 + 200 = ![]() 320 + 20 = ![]() 710 + 2 = ![]() 975 - 400 = ![]() 280 - 50 = ![]() 481 + 5 = ![]() 679 - 30 = ![]() 598 - 3 = ![]() 540 - 30 = ![]() 871 + 11 = ![]() 350 + 210 = ![]() 777 - 55= ![]() 400 - 30 = ![]() 329 + 30 = ![]() 100 + 129= ![]() 846 + 33 = ![]() 229 - 9 = ![]() 67 +230 = ![]() 1000 - 30 = ![]() 690 - 400 = ![]() 700 + 29 = ![]() 290 - 40 = ![]() 834 + 130 = ![]() 652 + 8 = ![]() 600 - 430 = ![]() 60 + 330 = ![]() 7 + 831 = ![]() 679 - 376 = ![]() 892 - 51= ![]() 153 + 745 = |