900 – (600 – 130 · 4) : 10 800 – 250 + 140 : 5 · 2

Пример 1:

900 – (600 – 130 × 4) : 10 =

1) 130 × 4 = 520

2) 600 – 520 = 80

3) 80 : 10 = 8

4) 900 – 8 = 892

Пример 2:

800 – 250 + 140 : 5 × 2 =

1) 140 : 5 = 28

2) 28 × 2 = 56

3) 800 – 250 = 550

4) 550 + 56 = 606

Ответ: 892; 606.