4-3-2+6+1-5+4-8-9

解

4 - 3 - 2 + 6 + 1 - 5 + 4 - 8 - 9

- 12

解答ステップ

4 - 3 - 2 + 6 + 1 - 5 + 4 - 8 - 9

演算のPEMDAS順に従う

足して割る (左から右)

4 - 3 = 1

= 1 - 2 + 6 + 1 - 5 + 4 - 8 - 9

1 - 2 = - 1

= - 1 + 6 + 1 - 5 + 4 - 8 - 9

- 1 + 6 = 5

= 5 + 1 - 5 + 4 - 8 - 9

5 + 1 = 6

= 6 - 5 + 4 - 8 - 9

6 - 5 = 1

= 1 + 4 - 8 - 9

1 + 4 = 5

= 5 - 8 - 9

5 - 8 = - 3

= - 3 - 9

- 3 - 9 = - 12

= - 12

数直線

= - 12