Skip counting by 2s, 5s, 10s, 100s

10, 20, ___

2, 4, 6 ___

5, 10, 15, 20, ____

100, 200, ____, 400

skip count by 2s back 10, 8, 6, _____

skip count by 5s back 30, 25, 20, _____

skip count by 10s back 90, 80, _____, 60

skip count by 100s back

700, 600, _____, 400

Which number does NOT belong?

2, 4, 6, 7, 10, 12, 14