Show:
Addition
Subtraction
Place Value
100

45 + 4 =

45 + 4 = 49

100

83-10=

83-10=73

100

What digit is in the ones place?


45

5
200

71 + 7 =

71 + 7 = 78

200

68-20=

68-20=48

200

What digit is in the tens place?

87

8

300

23 + 54 =

23 + 54 = 77

300

79-6=

79-6=73

300

What is the value of the 8?


783

80

400

43 + 56 =

43 + 56 = 99

400

95 - 3 =

95 - 3 = 92

400

What digit is in the hundreds place?


456

4

500

34 + 74 =

34 + 74 = 108

500

88 - 5 =

88 - 5 = 83

500

What is the value of the 6?


163

60