Problem 22: Fill in the missing digits in the sum.

16

__

+51

_________

96

Predict: I predict that I will need to do addition in this sum

Clarify: I have no words, sentences or phrases to clarify.

Find the big question: What are the missing digits?

Solve:

- Well, 6+1 cant equal 6, so it has to equal 16.
- 6+1=7. 7+?=16? 9.
- So we write down 9 and carry the one.
- Now, 1+ the carried 1= 2. So, 2+5= 7, but 7+?=9? 2.

The answer is

16+29+51= 96.

Summary: The mathematicians toolbox strategy I used in this sum was break the problem into manageable parts, and use my prior knowledge.

(Jess/Monique: I could not post this in Wednesday night as my wi-fi was not working.