Adding 3 Numbers
Place Value
Smallest Number
Largest Number
Adding and Subtracting
100

10+0+1=

11

100

68

Tens

100

2, 6, 10

2

100

2,7,3

7

100

23+22=

25
200

5+5+3=

13

200

23

Ones

200
18, 17,21

17

200

23,29,13

29

200

97-42=

55

300

6+3+4=

13

300

652

Hundreds

300

29, 44, 27

27

300

78, 65,66

78

300

46+33=

79

400

8+6+3=

17

400

323

Tens

400

435, 634, 311

311

400

910, 810, 710

910

400

89-13=

76

500

10+3+5=

18

500

761

Ones

500

898,890, 899

890

500

677, 899, 300

899

500

88+11=

99

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