Subtraction
Addition
Multiplication
HARD Addition
HARD Subtraction
100

160

- 25

_______ 

?

135

100

140

+ 54

_____

?

194 

100

1x2

2

Anything multiplied by 1 is the other number :)

100

208

+ 45

____

?

253

100

240

- 54

_______

?

186

200

160

- 48

______

?

112

200

129

+75

____

?

204

200

1x3

3


Anything multiplied my 1 is the other number :)

200

245

+ 54

_______

?

299

200

246

- 78

_____

?

168

300

125

- 44

_____

?

81

300

190

+ 60

____

?

250

300

1x4

4


Anything multiplied my 1 is the other number :)

300

289

+ 67

______

?

356

300

239

- 98

______

?

141

400

180

- 46

____

?

134

400

130

+ 66

_____

?

196

400

1x5

5


Anything multiplied my 1 is the other number :)

400

235

+ 51

________

?

286

400

254

-67

______

?

187

500

197

- 56

_____

?

141

500

188

+ 79

_______

?

267

500

1x6

6


Anything multiplied my 1 is the other number :)

500

278

+ 63

_______

?

341

500

HARDEST ONE

320

- 36

______

?

284


That was hard ;)