Breaking Apart Ones to Add Breaking Apart Addends as Tens and Ones Quick Draw Pictures Addition Problems (Algorithms) Addition Problems with Regrouping
100
15 + 7=___
/\
5+2
20 + 2=22
15 + 7=___
100
17--> 10 + 7
21--> 20 + 1
+_____--> 30 + 8 =38
17
21
+_____
100
I ooo
II oooo
3 Tens
7 Ones =37
13
24
+____
100
18
11
+_____
29
18
11
+_____
100
1
17
24
+___
41
17
24
+___
200
28 + 6=___
/\
2+4
30 + 4=34
28 + 6=___
200
25--> 20 + 5
33--> 30 + 3
+_____--> 50 + 8 = 58
25
33
+_____
200
ll oooo
lll oo
4 Tens
6 Ones = 56
24
32
+_____
200
25
21
+_____
46
25
21
+_____
200
1
26
34
+___
60
26
34
+_____
300
37 + 8=____
/\
3+5
40 + 5= 45
37 + 8= _____
300
38--> 30 + 8
41--> 40 + 1
+_____--> 70 + 9 = 79
38
41
+_____
300
lll ooooo o
llll ooo
7 Tens
9 Ones= 79
36
43
+_____
300
36
43
+_____
79
36
43
+_____
300
1
45
49
+_____
94
45
49
+_____
400
43 + 9=___
/\
7+2
50 + 2=52
43 + 9=___
400
44--> 40 + 4
52--> 50 + 2
+_____--> 90 + 6 = 96
44
52
+_____
400
lllll ooooo oo
lllll o
9 Tens
8 Ones= 98
47
51
+_____
400
55
42
+_____
97
55
42
+_____
400
1
53
38
+_____
91
53
38
+_____
500
58 + 7=___
/\
2+5
60 + 5=65
58 + 7=___
500
57--> 50 + 7
42--> 40 + 2
+_____--> 90 + 9 = 99
Write an addition problem for the following story. Then solve the problem by breaking apart the tens and ones:

Mr. Brown has 57 marbles in his collection. Mr. Black gives him 42 more marbles. How many marbles does Mr. Brown have in his collection now?
500
llll ooooo oo
lll o
7 Tens
8 Ones=78
Write an addition problem for this story. Then solve it by drawing a quick picture.

Sally has 47 jars of jelly. Her friend gives her 31 more jars. How many jars of jelly does Sally have now?
500
51
34
+___
85
Write an addition problem for the following story:

Mr. Peters has 51 balloons. Mrs. Brown gives him 34 more balloons. How many balloons does Mr. Peters have now?
500
1
79
15
+_____
94
Write an addition problem for this story. Then solve it using addition with regrouping.

Jack had 79 bottle caps to give Mrs. Houser. Kate gave him 15 more to add to his collection. How many bottle caps did Jack give to Mrs. Houser?






Addition Strategies

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