Numbers to 20 and Geometry

What number is it?

• twenty

• thirteen

• twelve

What number is it?

• fiveteen

• five teen

• fifteen

Match the number symbol to its number word.

• eleven

• 
• eighteen

• 
• thirteen

• 

Sort the odd number.

• 12, 14, 16, 18 and 20

• 11, 12, 13, 14, and 15

• 11, 13, 15, 17, and 19.

Sort the even numbers.

• 12, 14, 16, 18, and 20.

• 16, 17, 18, 19 and 20.

• 11, 13, 15, 17, and 19

16 = ___ ten and 6 ones.

13 = 1 ten and ___ ones.

1 ten and 7 ones =

2 tens and 0 ones =

Complete this part-whole diagram.

• 15

• 5

• 10