math 1
5+5=?
what is 10
30+30=?
55+55=?
what is 110
80+80=?
what is 160
105+105=?
what is 205
10+10=?
what is 20
35+35?
what is 70
60+60=?
what is 120
85+85=?
what is 170
110+110=?
15+15=?
what is 30
40+40=?
what is 80
65+65=?
what is 130
90+90=?
what is 180
150+150=?
what is 300
20+20=?
what is 40
45+45=?
what is 90
70+70=?
what is 140
95+95=?
what is 190
200+200=?
what is 400
25+25=?
what is 50?
50+50=?
what is 100
75+75=?
what is 150
100+100=?
what is 200
250+250=?
what is 500