100
149 - 10 = ?
What is 139?
100
172 - 10 = ?
What is 162?
100
184 - 10 = ?
What is 174?
100
142 - 10 = ?
What is 132?
100
166 - 10 = ?
What is 156?
200
639 - 20 = ?
What is 619?
200
384 - 20 = ?
What is 364?
200
173 - 20 = ?
What is 153?
200
182 - 20 = ?
What is 162?
200
284 - 20 = ?
What is 264?
300
449 - 30 = ?
What is 419?
300
382 - 30 = ?
What is 352?
300
473 - 30 = ?
What is 443?
300
573 - 30 = ?
What is 543?
300
374 - 30 = ?
What is 344?
400
583 - 40 = ?
What is 543?
400
392 - 40 = ?
What is 352?
400
593 - 40 = ?
What is 553?
400
684 - 40 = ?
What is 644?
400
673 - 40 = ?
What is 633?
500
1,430 - 50 = ?
What is 1,380?
500
1,682 - 50 = ?
What is 1,632?
500
6,355 - 50 = ?
What is 6,305?
500
6,199 - 50 = ?
What is 6,149?
500
4,892 - 50 = ?
What is 4,842?