-2+4-6-10+22-23+15-2

解

- 2 + 4 - 6 - 10 + 22 - 23 + 15 - 2

- 2

解答ステップ

- 2 + 4 - 6 - 10 + 22 - 23 + 15 - 2

演算のPEMDAS順に従う

足して割る (左から右)

- 2 + 4 = 2

= 2 - 6 - 10 + 22 - 23 + 15 - 2

2 - 6 = - 4

= - 4 - 10 + 22 - 23 + 15 - 2

- 4 - 10 = - 14

= - 14 + 22 - 23 + 15 - 2

- 14 + 22 = 8

= 8 - 23 + 15 - 2

8 - 23 = - 15

= - 15 + 15 - 2

- 15 + 15 = 0

= 0 - 2

0 - 2 = - 2

= - 2