Breaking Apart Ones to Add | Breaking Apart Addends as Tens and Ones | Quick Draw Pictures | Addition Problems (Algorithms) | Addition Problems with Regrouping |
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15 + 7=___
/\ 5+2 20 + 2=22
15 + 7=___
|
14 ---> 10 + 4
23 ---> 20 + 3 +_____---->30 + 7 = 37
14
23 +______ |
l ooo
ll oooo 3 Tens 7 Ones=37
13
24 +_____ |
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28 + 6=___
/\ 2+4 30 + 4=34
28 + 6=___
|
25--> 20 + 5
33--> 30 + 3 +_____--> 50 + 8 = 58
25
33 +_____ |
ll oooo
lll oo 5 Tens 6 Ones=56
24
32 +_____ |
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37 + 8=____
/\ 3+5 40 + 5= 45
37 + 8= _____
|
38--> 30 + 8
41--> 40 + 1 +_____--> 70 + 9 = 79
38
41 +_____ |
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43 + 9=___
/\ 7+2 50 + 2=52
43 + 9=___
|
44--> 40 + 4
52--> 50 + 2 +_____--> 90 + 6 = 96
44
52 +_____ |
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58 + 7=___
/\ 2+5 60 + 5=65
58 + 7=___
|
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? |
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