Решите примеры 450 -80:2-230
48*2 + 900-90
84:14*100-560
750 -; 16*5 + 3*100
Решать по действиям
Пример:
450-80:2-230
1) 80:2= 40
2) 450-40=410
3) 410-230=180
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