Answer:
4. B(i think)
5. B(i think)
6. B (12 with a remainder of 2)
7. A (65/5=13)
Explanation:
Number 4 and 5 are reverse problem and broken up problems, your checking the answer so get the answer first.
6. Simple division ( as I use a calculator to check lol)
7. Count the cubes along the top and then separately count the ones along the side. Then multiply. You will get the main number which in division gets divided by one of the numbers(from the top or side) and you get the other ( if the top number was the dividend then the side number is the answer.)
BASICALLY it is finding how many cubes total and how we got there and sorting them right.