Show:
Addition
Addition
Doubles
Doubles
Challenge
100

35 + 15 = 

50
100

37 + 55 =

92

100

28 + 28 =

56

100

50 + 50 = 

100

100

127 + 56 = 

183

200

19 + 22 = 

41

200

68 + 16 = 

84

200

36 + 36 = 

72
200

48 + 48 =

96

200

135 + 47 = 

182

300

76 + 16 = 

92
300

57 + 25 = 

82

300

17 + 17 = 

34
300

39 + 39 = 

78

300

119 + 36 = 

155

400

28 + 53 = 

81

400

28 + 55 = 

83

400

35 + 35 = 

70

400

75 + 75 = 

150

400

168 + 127 = 

295

500

116 + 45 = 

161

500

127 + 18 =

145

500

45 + 45 = 

90

500

110 + 110 = 

220

500

146 + 784 = 

930