Subject: grade 6 math
Find the two numbers: your clues: 100 is a common multiple; neither number is a multiple of the other; both are even. Since they are both even and both multiples of 5 we actually know that they are both multiples of 10. Now, using the fact that 100 is a multiple of them both, we know that the two numbers are in the list: {10, 20, 50}. (since 30, 40, 60, 70, 80 & 90 don't divide 100). We now have to find two of these that satisfy "neither number is a multiple of the other". This leaves us with 20 and 50. Penny
