3 – (+6) -(-7) = ?
When you combine the signs of numbers, they will give you different results. Their signs could be Positive (+) or Negative (-).
+3 ⟺ 3
–3 ⟺ –3
If a number doesn’t have a sign, it usually means it’s Positive (+). 3 is same as (+3).
+(3) ⇨ +3
+(3) ⇨ 3
-(3) ⇨ -3
Signs in brackets, is the same when they are outside brackets.
++ ⇨ +
+(+3 ) ⇨ +3
When you combine Positive (+) and Positive (+), the sign will become Positive (+).
+- ⇨ –
+(–3 ) ⇨ – 3
–(+6 ) ⇨ – 6
When you combine Positive (+) and Negative (-), the sign will become Negative (-).
–(–6 ) ⇨+6
When you multiply Negative (-) and Negative (-), the sign will be Positive (+).
3–(+6)–(–7)
I
3–(+6) –(–7)
I
3–6 +7
I
–3 +7
I
–3 +7 = 4
Breakdown the numbers in parts. Then combine them.
// how to subtract big number from small number link/page?