Fill in the missing sequence.

Skip Counting by 20's. Fill in the missing number.

20 ____ 60 80

Skip Counting by 20's. Fill in the missing number.

20 40 _____ 80

Skip Counting by 20's. Fill in the missing number.

40 60 80 ____

Skip Counting by 20's. Fill in the missing number.

100 120 ____ 160

Skip Counting by 20's. Fill in the missing number.

140 160 _____ 200

Skip Counting by 100's. Fill in the missing number.

100 200 ____ 400

Skip Counting by 100's. Fill in the missing number.

400 500 ____ 700

Skip Counting by 100's. Fill in the missing number.

500 600 700 ____

Skip Counting by 100's. Fill in the missing number.

700 800 900 _______

Skip Counting by 100's. Fill in the missing number.

400 _____ 600 700