11394, counting on in hundreds: , , , working
1290, counting on in fives: , , , working
13323, counting on in hundreds: , , , working
14765 − 10 = working
15494, counting on in hundreds: , , , working
16273, counting on in tens: , , , working
17790, counting on in fives: , , , working
18534, counting on in hundreds: , , , working
19598, counting on in ones: , , , working
20 = 554 + 100working