Addition with Regrouping
15
+ 26
41
28
- 19
9
What number is next in this pattern?
43, 53, 63, 73
83
15
22
+ 26
63
Doug solved 67 + 13 by using the steps below:
60+ 10 = 70
7 + 3 = 10
70 + 10 = 80
Was Doug correct?
Yes, Doug was correct.
39
+ 47
86
45
- 18
27
What number is next in this pattern?
182, 172, 162, 152
142
10
53
+ 29
92
Paul solved 67 - 13 by using the steps below:
60 - 10 = 50
50 - 7 = 43
Was Paul correct?
No, Paul was incorrect.
11
+ 79
90
85
- 49
36
What number is next in this pattern?
569, 669, 769, 869
969
33
42
+ 18
93
Roscoe solved 67 - 43.
60 + 40 = 100
100 - 7 = 93
93 - 3 = 90
Was Roscoe correct?
No, Roscoe was incorrect.
59
+ 29
88
97
- 58
39
What number is next in this pattern?
983, 883, 783, 683
583
11
24
35
+ 26
96
Marcy solved 75 + 15 by using the steps below:
70 + 10 = 80
5 + 5 = 10
80 + 10 = 90
Was Marcy correct?
Yes, Marcy was correct.
176
+ 216
392
194
- 35
159
What number is next in this pattern?
945, 950, 955, 960
965
87
12
11
+ 26
136
You are going to solve the problem 145 + 133.
You break apart the addends into hundreds, tens, and ones.
100 + 100 = 200
40 + 30 = 70
50 + 3 = 53.
Did you break apart the addends correctly?