Show:
1-digit Addition
2-digit Addition
More 2-digit Addition
Even More 2-digit Addition
True or False!
100
6+4=
10
100

32+10=

42
100

33+19=

42

100

17+24

41

100

2 + 5 + 3 + 5 = 8 + 2 + 4

False


200
8+8=
16
200

10+25=

35
200

22+68=

90

200

28+37

65

200

10 + 3 + 5 = 10 + 10

False

300
9+3
12
300

58+30=

88

300
71+13=
84
300

46+58

104
300

6 + 7 + 3 + 4 = 21-1

True

400

6+8=

14
400

66+10

76

400

19+33=

52

400

65+17

82

400

52-30 = 21

False

500

7+9=

16
500

40+64=

104

500
88+45=
133
500

82+29

111

500

56 = 20 + 5 + 1 + 30

True