adding
adding
adding
adding
adding
100
45+45
What is 108
100
41+41
What is 28
100
52+52
What is 410
100
12+12
What is 42
100
14+14
What is 82
200
15+15
What is 102
200
70+7
What is 77
200

25+43

68

200

12+16

28

200

30+38

 68

300

36+12

48

300

87+12

99

300

66+6

72

300

12+12+12

36

300

81+9

90

400
9+9
What is 18
400
10+10
What is 20
400
20+20
What is 40
400
30+30
What is 60
400
40+40
What is 80
500

54+37

 91

500
1000+2000
What is 3000
500
300+300
What is 600
500
400+100
What is 500
500
600+500
What is 1100