100
The answer is 45
What is 30+15
100
tens
What is the 7 in 2,375
200
The answer is 20
What is 15+5
200
thousands
What is the 1 in 1,985
300
The answer is 1,500
What is 1,100+400
300
ones
What is the 9 in 129
400
The answer is 20,000
What is 2,000+18,000
400
900
What is 1,100-200
400
100,000
What is 100x100
400
ten thousands
What is the 4 in 14,000
500
100,000
What is 50,000+50,000
500
1,000
What is 2,000-1,000
500
1,000,000
What is 1,000x1,000
500
hundred thousand
What is the 2 in 206,000