Question

L)-84+84 M)-10-100 N)-2-4-1 O)-8+6-1 P)12-7+3 Q)4+13-21 R)-8+8+1 S)-7+6+9 T)-5-3-4-1 U)+10-43-17 V)-6-6+73 W)-30+30-40 X)-60-18+50 Y)142-438+165

Answer 1

L)
= - 84 + 84
= 0

***********************
M)
= - 10 - 100
= - 110

*******************************
N)
= - 2 - 4 - 1
= - 6 - 1
= - 7
******************************
O)
= - 8 + 6 - 1
= - 2 - 1
= - 3
****************************
P)
= 12 - 7 + 3
= 5 + 3
= 8
*****************************
Q)
= 4 + 13 - 21
= 17 - 21
= - 4
************************
R)
= - 8 + 8 + 1
= 0 + 1
= 1
*************************
S)
= - 7 + 6 + 9
= - 7 + 15
= 15 - 7
= 8
**************************
T)
= - 5 - 3 - 4 - 1
= - 8 - 5
= - 13
***************************
U)
= + 10 - 43 - 17
= 10 - 60
= - 50

*************************
V)
= - 6 - 6 + 73
= - 12 + 73
= 73 - 12
= 61
**************************

W)
= - 30 +30 - 40
= 0 - 40
= - 40

***************************
X)
= - 60 - 18 + 50
= - 78 + 50
= - 28

**************************
Y)
= 142 - 438 + 165
= 142 + 165 - 438
= 307 - 438
= - 131