Name: 
 

Lesson 1 - Using Addition Strategies



 1. 

Which double + 1 strategy can you use to add 6 + 7?
a.
6 + 6 + 1 = 13
b.
7 + 7 + 1 = 15
 

 2. 

Which double + 1 strategy can you use to add 8 + 9?
a.
9 + 9 + 1 = 19
b.
8 + 8 + 1 = 17
 

 3. 

Which double - 1 strategy can you use to add 5 + 6?
a.
5 + 5 - 1 = 9
b.
6 + 6 - 1 = 11
 

 4. 

Which double - 1 strategy can you use to add 8 + 7?
a.
8 + 8 - 1 = 15
b.
7 + 7 - 1 = 13
 

 5. 

Use the 10-frames and the counters to add 7 + 5.

             mc005-1.jpg
a.
10
b.
14
c.
12
 

 6. 

Use the 10-frames and the counters to add 3 + 8.

                mc006-1.jpg
a.
11
b.
13
c.
16
 
 
Match the number sentence with the sum.
a.
12
c.
16
b.
15
d.
11
 

 7. 

9 + 7
 

 8. 

3 + 9
 

 9. 

2 + 6 + 3
 

 10. 

4 + 3 + 8
 



 
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