Show:
Algebra
Adding
Multiplying
Subtracting
Conversion
100

2+62

38

100

2+2

4

100

5*3

15

100

2-1

1

100

1/2 in decimal

0.5

200

2x(x+5)

2x2+10x

200

5+8

13

200

10*12

120

200

15-6

9

200

0.75 in percent

75%

300

1/2*6

3

300

23+25.5

48.5

300

14*2

28

300

25-17

8

300

2/4 in decimal

50%

400

3(5x+6x2)

15x+18x2

400

30.3+23.5

53.8

400

12*13

156

400

21-19

2

400

1/3 in decimal

0.33

500

(2x+6)(x+9)

2x2+24x+54

500

356+490

846

500

25*15

375

500

250-119

131

500

0.333 in percent

33.3%