You can use 10 blocks by having 1 ten and 6 ones and then divide it into groups of 3 when you do that you are kind of subtracting when you take away 3 away each time. After that you multiply it, so you think of whatever times 3 is 16 which is 15 r1. Then your answer should be 30.
Answer: -3.66666666667 or negative three and six tenths repeating.
The answer to this question is:
671.44
I think the first one is ( C :3 ) and the other one is B 2
