Curriculum
Rule: Line up the numbers one on top of the other and add downward.
   4
 + 0
——
___
   3
 + 1
——
___
   5
 + 2
——
___
   6
 + 3
——
___
   0
 + 8
——
___
Rule: Find the missing number to reach the total.
   5
 + __
——
   9
   4
 + __
——
   7
   __
 + 2
——
   4
   __
 + 6
——
   9
   7
 + __
——
   8
| Missing Addends (Single Digits) | Tens and Ones Breakdown |
|
5 + _____ = 9 |
12 + 3 = 10 + _____ |
|
9 + _____ = 9 |
15 + 2 = 10 + _____ |
|
0 + _____ = 3 |
11 + 4 = 10 + _____ |
|
7 + _____ = 8 |
14 + 1 = 10 + _____ |
|
4 + _____ = 7 |
13 + 6 = 10 + _____ |
|
_____ + 2 = 4 |
17 + 2 = 10 + _____ |
|
_____ + 4 = 5 |
12 + 7 = 10 + _____ |
|
_____ + 6 = 9 |
16 + 3 = 10 + _____ |
|
_____ + 0 = 8 |
10 + 9 = 10 + _____ |
|
_____ + 7 = 8 |
11 + 5 = 10 + _____ |
..