who is the smartest

Multiplication

100

10x10

10x10=100

200

5x18

5x18=90 

400

23x12

23x12=276 

500

251x389

251x389=97,639 

Morphology

100

What does (o)logy mean 

Science or study of 

200

What doe un- mean

Undo or reverse

300

What does dis- dif- mean

                 Wrong/not opposite or apart

Not opposite or apart

400

What does phon mean

             Light or sound or act of state of result of

Light

500

What does phone mean

                Light or sound or device

Sound

subtraction

100

12-6

12-6=6

Addition

100

5+5

5+5=10

200

20+30

20+30=50 

400

2,581+3,735

2,581+3,735=6,316 

random

100

19-15

19-15=4 

300

2x80

2x80=160 

500

33+49

33+49=82