Add 10,100 or 1000
Add 5 to a Multiple of 5Add 10,100,1000 to a multiple of 10
Add 10,100,1000 to any Number
Add multiple of 10,100,1000 to multiple of 10
Add multiple of 10,100,1000 to any Number
Subtract 10,100 or 1000
Subtract 5 from a Multiple of 5Subtract 10,100,1000 from a multiple of 10
Subtract 10,100,1000 from any Number
Subtract multiple of 10,100,1000 from multiple of 10
Subtract multiple of 10,100,1000 from any Number