Question

Chen is checking a division problem by doing the following:

152
× 4
______

+ 2
______

What problem is Chen checking?

Answer 1

That "+2" is the remainder of a division. Note that 152 times 4 is 608.
Dividing 608 by 4 results in 152 with no remainder.
Dividing 610 by 4 results in 152 with the remainder 2.
____
Chen is checking the division problem 4 / 610 .