Question

3) Calcule

a) 4 + 10 + 8 =
b) 5 - 9 + 1 =
c) - 8 -2 + 3=
d) -15 +8 - 7=
e) 24 + 6 - 12=
f) -14 -3 -6 -1=
g) -4 +5 +6 +3 -9 =
h) -1 +2 -4 -6 -3 -8=
i)6 -8 -3 -7 -5 -1 + 0 -2=
j) 2 - 10 - 6 + 14 - 1 + 20=
l) -13 -1 - 2 - 8 + 4 - 6 - 10=
​

Answer 1

a. 22

b. -3

c. -7

d. -14

e. 18

f. -24

g. 1

h. -20

i. -20

j. 19

l. -36

Explanation:

We have plenty of equations here, so let's make it quick.

Use the PEMDAS formula, which means to add and subtract from left to right :

A.

4 + 10 + 8

4 + 10

14 + 8

22

B.

5 - 9 + 1

-4 + 1

-3

C.

-8 - 2 + 3

-11 + 3

-7

D.

-15 + 8 - 7

-15 + 1

-14

E.

24 + 6 - 12

30 - 12

18

F.

-14 - 3 - 6 - 1

-17 - 6 - 1

-23 - 1

-24

G.

-4 + 5 + 6 + 3 - 9

1 + 6 + 3 - 9

7 + 3 - 9

10 - 9

1

H.

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

1 - 4 - 6 - 3 - 8

-3 - 6 - 3 - 8

-9 - 3 - 8

-12 - 8

-20

J.

2 - 10 - 6 + 14 - 1 + 20

-8 - 6 + 14 - 1 + 20

-14 + 14 - 1 + 20

-1 + 20

19

L.

-13 - 1 - 2 - 8 + 4 - 6 - 10

-14 - 2 - 8 + 4 - 6 - 10

-16 - 8 + 4 - 6 - 10

-24 + 4 - 6 - 10

-20 - 6 - 10

-26 - 10

-36