hardcore subtraction
hardcore addition
functions (+) (X)
hardcore multiplying
functions (+) (2)
100

2-9 no calculators

-7

100

2+2+2+2+2+2+2+2+2 no calulators

18

100

P.S (f) (X)= -1x2+20, and (b)= 6x-9

hint don't forget (f+b) (x)=

(f+g) (x)= -1x2+6+11

100

14 times 2

no calculators

28

100

3x2+2x-1

x=2

(f+g) (2)= 13

200

7-5-2 no calculators

0

200

21+4200+96 no calculators

5370

200

P.S (c) (X)= -1x2+25, and (a)= 6x-10

hint don't forget (c+a) (x)=

(f+g) (x)=-1x2+6x+15

200

no calculators

24

hint multiply 2 4 times

16

200

4x2+3x-2

(f+g) (2)= 17

300

80-800 no calculators

-720

300

1+2+3+4+5+6+7+8+9+10

no calculators

55

300

P.S (d) (X)= -1x2+21, and (w)= 16x-12

hint don't forget (d+w) (x)=

(f+g) (x)=-1x2+16+9

300

2x2x3

no calculators

12

300

21x2-10x+3

x=2

(f+g) (2)=65

400

-100-100 no calculators

-200

400

11+12+13+14+15

no calulators

65

400

P.S (g) (X)= -2x2+21, and (f)= 6x-12

hint don't forget (m+h) (x)=

(f+g) (x)=-2x2+6x+9

400

2x3x4

no calculators

24

400

40x2-20+10

130

500

550-990-1000

-1440

500

100+200+300 no caculators

600

500

P.S (z) (X)= -1x2+43, and (y)= -6x-53

(f+g) (x)= 1x2+6-10

500

200x100x10

no calculators

200,000

500

45x2-3x+1

x=3

397

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