Show:
2-digit Adding with Regrouping
2-digit Adding without Regrouping
Place Value
Mixed Review
Mixed Review
100
50+50=
What is 100
100
40+40=
What is 80
100
What place value do we start with in a 2 digit addition problem?
What is the ones place?
100

42 + 10=

What is 52?

100

35+12=

47

200
79+22=
What is 101
200
35+32=
What is 67
200
What number is in the tens place in the number 57?
What is 5?
200

32 + 16=

What is 48?

200

67 + 45=

112

300
39+37=
What is 76
300
48+11=
What is 59
300

When do you regroup the ones? 

When you add the ones and there is a 2 digit number

300

40+27=

What is 67?

300

46+23=

69

400

44+18=

What is 62?

400
97+32
What is 129
400

What is 3 tens + 5 tens?

What is 8 tens?

400

85+28=

113

400

79 +36=

115

500
34 + 18=
What is 52?
500
87+51=
What is 138
500
What place is the 7 in 79?
What is tens place?
500

78+37=

115

500

67+45=

112