Grade 2 Mental Math: Make 10 Strategy Review

Worked examples

Real problems from the practice worksheets, solved one step at a time.

1. Example 1

   6 + 7 = ?

   1. 7 needs 3 more to make 10.
   2. Split 6 into 3 and 3.
   3. 7 + 3 = 10.
   4. 10 + 3 = 13.

   Answer: 13

2. Example 2

   6 + 5 = ?

   1. 6 needs 4 more to make 10.
   2. Split 5 into 4 and 1.
   3. 6 + 4 = 10.
   4. 10 + 1 = 11.

   Answer: 11

3. Example 3

   9 + 4 = ?

   1. 9 needs 1 more to make 10.
   2. Split 4 into 1 and 3.
   3. 9 + 1 = 10.
   4. 10 + 3 = 13.

   Answer: 13