adding by tens- by Matheus

Learning Intention: W.A.L.T.- add to make a whole ten. 
Success Criteria:I know I am Successful if I can add two numbers that makes a whole ten.

Problems: Choose numbers that makes ten than add to find the answer
1) 7+3+4=14 I know its 14 because 7+3=10+4=14.

2) 9+1+7+2=19 I know its 19 because 9+1=10 so 10+9=19 

3) 2+6+3+8+7=26 I know its 26 because 2+8=10 7+3=10 so 10+10=20 so 20+6=26

4) 9+12+8+11+4=44 I know its 44 because 9+11=20; 12+8=20 so 20+20=40+4=44.