Addition 1
Subtraction 1
Addition 2
Subtraction 2
Mystery!
100

40 + 50 = 

90

100

80 - 30 = 

50

100

50 + 60 =

110

100

190-60 = 

130

100

238 - 38 = 

200

200

38 + 40 = 

78

200

73 - 30 = 

43

200

79 + 30 = 

109

200

110 - 50 = 

60
200

104 + 110 = 

214

300
71 + 24 = 
95
300

148 - 17 = 

131

300

89 + 53 = 

142

300

162 - 79 = 

88

300

205 - 55= 

150

400

122 + 54 = 

176

400
197 - 53=

144

400

139 + 28 = 

167

400

104 - 26 =

78

400

199 + 99= 

298

500

236 + 231= 

467

500

275 - 124=

151

500

164 + 69 = 

233

500

200 - 136=

64

500

300 - 225 = 

75