math

adding

100

47+79

what is 126

200

127+155

what is 282

300

164+275+234

what is 673

400

256+472+267

what is 995

500

854+289+250

what is 1393

adding variables

100

10x+5x

what is 15x

200

12x-6x

what is 6x

300

27x+59x

what is 86x

400

58x+47x

what is 105x

500

123x+257

what is 380x

brackets

100

2(x+1)

what is 2x+2

200

3(a+9)

what is 3a+27

300

3(a+11)+2(b+8)

What is 3a+2b+49

400

7(x-2)-10(x-2)

What is -3x+6

500

2a⁷(3a³-4)+6a⁷

what is 6a¹⁰-2a⁷