1
- 4 + 3 =
-1
+1
+7
-7
2
- 8 - 10 =
-18
+2
+18
-2
3
(-12) - (-4) =
+16
-16
+8
-8
4
(+432) ⋅ (−7) =
-2824
+3024
+2824
−3024
5
8 ÷ (−2) =
-4
+4
10
+10
6
(−5270) ÷ (−5) =
-154
+154
-1054
+1054
7
0 ÷ (−2) =
+2
0
Impossível
-2
8
(+𝟒) ⋅ (−𝟐) ⋅ (+𝟓) =
-40
+40
-3
+3
9
253 x 21 =
5313
5303
5000
5300
10
(+72) ÷ (−3) =
+69
-69
-24
+24
