Show:
Two-Digit Addition
Addition with 3 Addends
Addition with 4 Addends
100

45 + 20 = 

65

100

20 + 30 + 10 = 

60

100

23 + 12 + 53 + 12 = 

100

200

62 + 35 = 

97
200

42 + 13 + 10 = 

65

200

10 + 30 + 20 + 40 = 

100

300

37 + 25 = 

62
300

34 + 22 + 19 = 

75

300

44 + 25 + 33 + 23 = 

125

400

56 + 38 = 

94

400

41 + 50 + 29 = 

120

400

44 + 23 + 12 + 26 = 

105

500

63 + 47 = 

110

500

44 + 56 + 13 = 

113

500

56 + 47 + 55 + 67 = 

225