Expanded form to standard form
Standard form to expanded form
What is the value of the 7
Adding by 1's
Adding by 10's
100

30 + 7 

37

100

28

20 + 8

100

75

7 tens or 70

100

56 + 1

57

100

66 + 10

76

200

40 + 8

What is 48

200

56

50 + 6

200

807

7 ones or 7

200

68 + 1

69

200

78 + 10

88

300

80 + 5

85

300

98

90 + 8

300

274

7 tens or 70

300

79 +1

80

300

88 + 10

98

400

90 + 9 

99

400

82

80 + 2

400

567

7 ones or 7

400

99 + 1 

100

400

275 + 10

285

500

100 + 50 + 6

156

500

574

500 + 70 + 4

500

762

7 hundreds or 700

500

1399 + 1

1,400

500

399 + 10

409

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