Show:
Addition
Subtraction
PEMDAS
Multiplication
Divide
WILD
100

101+74

175

100

100-75

25

100

53-17+9-2

43

100

12 x 9

108

100

75/3

25

100

 35 + 45 = ?

80 

200

7+9+8

24

200

9-3

6

200

=15+6-2

19

200

3 x 3

9

200

8/2

4

200

3 x 20 ?

60

300

10+850+30+200

1090

300

20-48

-28

300

=(29-30)+(16-12)

3

300

15 x 5

75

300

144/12

12

300

I appear twice in the morning and twice in the evening. But I only appear once at night. What am I?

The letter "N"

400

76+52+856

984

400

235-15-30

190

400

 (15+254)-(68+293)

-92

400

100 x 40

4000

400

256/4

64

400

53

125

500

258+270+59

587

500

900-780-36

84

500

4x8-(15+92)+167

242

500

4.31 x 11

47.41

500

650/25

26

500

-93

-729