Show:
Addition
Subtraction
Rounding
100

8+14

22

100

8-5

3

100

Round to the nearest 10:

12

10

200

45+4

49

200

17-11

6

200

Round to the nearest 10:

37

40

300

32+18

50

300

190-170

20

300

Round to the nearest 10:

25

30

400

167+111

278

400

234-150

84

400

Round to the nearest 100:

476

500

500

189+726

915

500

1234-345

889

500

Round to the nearest 100:

650

700