Addition With Regrouping
33 + 27=
60
97-18=
79
29+30=
59
15-___=10
5
Sally bought 136 cookies this week and bought 819 cookies last month. How many cookies did she buy in all?
955 cookies
10+20=
30
Which number is in the tens place value?
89
18+86=
94
35+31=
66
86-___=21
65
84-41
43
28-16
12
89-34=
55
53+43
96
26+34
60
23+43
66
51-13
38