Answer:
The solution is r=40.
Step-by-step explanation:
First, we identify the parts of the division:
"r" is the dividend of the division.
10 is the divisor
4 is the quotient.
To get the value of "r", we have to make a tape diagram where the divisor represents the number of equal-sized parts (boxes) and the quotient represents de quantity inside the boxes.
The tape diagram is made of 10 equal-sized parts of 4.
So the result is 10×4=40. The value of "r" is 40.
(See attached picture)
