Adding two digit numbers

Mental Math

100

Add 

43+10=

53

200

Add 35+30=

65

300

Add 23+15=

38

400

Add 27+70

97

500

Add 56+43

99

100 Chart

100

Using your 100 Chart add 20+10

30

200

Using your 100 chart add 34+12

46

300

Using your 100's chart add 22+15

37

400

Using your 100 chart add 64+22

86

500

Using your 100s chart add 36+21

57

Adding tens and Ones

100

62+37

60+30=

7+2=

so 62+37=

62+37

60+30=90

7+2=9

so 62+37=99

200

34+22

30+20=

4+2=

so 34+22 =

34+22

30+20= 50

4+2=6

so 34+22=56

300

48+31

40+30=

8+1=

so 48+31=

48+31

40+30=70

8+1=9

so 48+31=79

400

62+36

60+30=

2+6=

so 62+36=

62+36

60+30= 90

2+6=8

so 62+36=98

500

68+38=

60+30=

8+8=

so 68+38=

68+38

60+30=90

8+8=16

so 68+38= 106

Adding ones and Tens

100

27+13

7+3

20+10

so 27+13=

27+13

7+3=10

20+10=30

so 27+13=40

200

24+62

4+2=

20+60=

so 24+62=

24+62

4+2= 6

20+60=80

so 24+62=86

300

72+12

2+2=

70+10=

so 72+12=

72+12

2+2=4

70+10=80

72+12=84

400

67+15

7+5=

60+10=

so 67+15=

67+15

7+5= 12

60+10=70

so 67+15=82

500

93+11

3+1=

90+10=

so 93+11=

93+11

3+1= 4

90+10=100

so 93+11=104

Your choice

100

48+30

78

200

13+23

36

300

70+16

86

400

65+24

89

500

52+39

91