Multiplication-by twos fives and tens- by Matheus

Learning Intention:W.A.I.T.-multiply by number up to 100
Success Criteria: I know I am Successful when I can multiply skip counting doubles and repeated
problems 

1) how many marbles are there all together
2 children had 10 each=20; I skip count by twos 2,4,6,8,10,12,14,16,18,20. I use doubles 10+10=20 
 10 x 2= 20 I multiply 
2) Poppy Sam and miller have 5 marbles each.
how many marbles do they have all together I skip count by fives 5,10,15
I use repeated addition 5+5+5=15.  and I multiply 5 x 3 =15.

3)  Bentley ate 3 packets biscuits. There 10 biscuits in each packet. How many biscuits did he ate altogether?. I use repeated addition 10+10+10=30 I multiply 3 x 10=30. I skip count by ten = 19, 20, 30,