Question

50. 1) 14 065: 29 +378×207-78 729
2) 22 351 - 258×86-50 158÷809
3) 11 707 ÷ 23 + 4 687 ÷ 43 - 609
4) 89×805-908×67 + 2 507​

Answer 1

Ответ:

1) 14 065: 29 +378×207-78 729 = 485+378×207-78 729 = 485+78246-78729 = 78731-78729 = 2

2) 22 351 - 258×86-50 158÷809 =22351-22188-50158:809 = 22351-22188-62 = 163-62 = 101

3) 11 707 ÷ 23 + 4 687 ÷ 43 - 609 = 509+4 687 ÷ 43 - 609 = 509+109-609 =

618-609 = 9

4)​89×805-908×67 + 2 507​ = 71645-908×67 + 2 507 = 71645-60836+2507

= 10809+2507 = 13316

Answer 2

1. 2
2. 65.15327564894932