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100

12 + 4 = ?

16

100

5 + 3 = ?

8

100

59 - 9 = ?

50

100

25 - 10 = ? 

15

100

249, what place is it in?

Tens
200

17 + 5 = ?

22

200

4 + 3 = ?

7

200

47 - 2 = ? 

45

200

38 - 3 = ?

35

200

904, what place is it in?

Ones

300

18 + 6 = ?

24

300

2 + 4 = ?

6

300

63 - 9 = ?

54

300

47 - 9 = ?

38

300

745, what place is it in?

Hundreds

400

22 + 9 = ?

31

400

8 + 2 = ?

10

400

76 - 6 = ?

70

400

76 - 16 = ? 

60

400

1,657, what place is it in?

Thousands

500

34 + 8 = ?

42

500

7 + 7 = ?

14

500

24 - 4 = ?

20

500

89 - 19 = ?

70

500

2,432, what place is it in?

Thousands