Упр.115 Часть 2 ГДЗ Моро Бантова 4 класс (Математика)

55.
$$47\,360:80$$
$$3\,340:20$$
$$750:50-40:5$$
$$33\,210:90$$
$$6\,020:70$$
$$360:60+20:1$$

Вычислим значения выражений по порядку действий.

1) $$47\,360:80$$

$$47\,360:80=47\,360:(10\cdot 8)=47\,360:10:8=4\,736:8=592$$

2) $$33\,210:90$$

$$33\,210:90=33\,210:(10\cdot 9)=33\,210:10:9=3\,321:9=369$$

3) $$3\,340:20$$

$$3\,340:20=3\,340:(10\cdot 2)=3\,340:10:2=334:2=167$$

4) $$6\,020:70$$

$$6\,020:70=6\,020:(10\cdot 7)=6\,020:10:7=602:7=86$$

5) $$750:50-40:5$$

$$750:50-40:5=750:(10\cdot 5)-40:5=750:10:5-40:5=75:5-40:5=15-8=7$$

6) $$360:60+20:1$$

$$360:60+20:1=360:(10\cdot 6)+20:1=360:10:6+20:1=36:6+20=6+20=26$$

Ответ

$$47\,360:80=592;$$
$$33\,210:90=369;$$
$$3\,340:20=167;$$
$$6\,020:70=86;$$
$$750:50-40:5=7;$$
$$360:60+20:1=26.$$