A. Write 31 to 40 (count forward)
31 33 37 40
B. Write 40 to 31 (count backward)
40 39 35 31
C. Fill in the boxes. Write numbers and number names.
31 Thirty–one
32 Thirty–two
33 Thirty–three
34 Thirty–four
35 Thirty–five
36 Thirty–six
37 Thirty–seven
38 Thirty–eight
39 Thirty–nine
40 Forty
136