x
%
decimal
division
-_+_=
100
10x20=
10x20=200
100
the decimal = to 20%
.20
100
.35
35%
100
5/5=
5/5=1
100
-7 + 2=
-5
200
200x2=
200x2=400
200
the decimal = to 53%
.53
200
.47
47%
200
5/10=
5/10=2
200
-9 + 10
=1
300
100x9=
100x9=900
300
the decimal = to 100%
1
300
0.10
10%
300
10/20=
10/20=2
300
-24 + 25
=1
400
50x30=
50x30=1500
400
the decimal = to 38%
38/100
400
0.70
70%
400
50/100=
50/100=2
400
-100 + 90
=10
500
500x500=
500x500=250000
500
the decimal = to 376%
376 / 100
500
0.90
90%
500
10/1000=
10/1000=100
500
-87 + 88
1