Question

A) (+15) + (+5) + (+9) =

B) (+4) + (+3) + (+12) =

C) +10 + 12 + (+8) =

D) (-14) + (-10) =

E) (-25) + (-37) =

F) (+4 567) + (-7 654)

G) (-22 340) + (18 720) =

H) 12 + (+5) + 3 + 5 + (+24) =

I) (6 + 3 + 5) + (+2) + (2 + 6 + 5 =

I) (20 + 32 + 9) + (+9 + 6 + 3) + 8 + 4 + 1 =

K) 5 + 3 + (+9) + 0 + (5 + 8 + 4) + 3 + (+1) =​

Answer 1

A) (+15) + (+5) + (+9)
= 15+5+9
=20+9
= 29
_________________

B) (+4) + (+3) + (+12)
= 4+3+12
= 19
_______________

C) +10 + 12 + (+8)
= 22+8
= 30
_____________

D) (-14) + (-10)
= 14-10
= 4
_____________

E) (-25) + (-37) =
= - 25 - 37
= - 62
________________

F) (+4 567) + (-7 654)
= - 7654 + 4567
= - 3087

7654
-4567
----------
3087

R.: - 3087
__________

G) (- 22 340) + (18 720) =
= - 22340 + 18720
= - 3620

22340
- 18720
------------
03620

R.: - 3620
__________

H) 12 + (+5) + 3 + 5 + (+24)
= 12+5+8+24
= 17+ 32
= 49
_____________

I) (6 + 3 + 5) + (+2) + (2 + 6 + 5) =
= 14 + 2 + 13
= 16 + 13
= 29
____________

J) (20 +32 +9) +(+9 +6 +3) +8+4 + 1
= 52+9+18+13
= 61 + 31
= 92
____________

K)
5+3 + (+9) + 0 +(5 + 8 + 4) +3 + (+1) = 8+9+17+3+1
= 17+20+1
= 17+21
= 38