Question

Mathias and his brother divided 2,017 marbles equally. Use compatible numbers to estimate how many marbles each brother received. They each received about marbles.

Answer 1

compatible numbers are numbers that we can use to solve complex calculations in a simpler manner.

instead of dividing 2,017 by 2, we can decompose this division in the following way:

even if you do not like math, you are probably able to divide 2,000 by 2 = 1,000

we still have 17 marbles left, and since you should know that 2 x 8 = 16

we calculated that each brother received 1,000 + 8 = 1,008 marbles and they had 1 left over.