How high can you count? First graders will strengthen their understanding of ones and tens with this hundreds chart. Students will fill in the missing numbers up to 120 and then answer questions using the chart.

Take countdowns to the next level with this two-digit backwards counting worksheet.

Search for acorns, mugs, pumpkins, and mushrooms with this fall-themed addition worksheet for first graders!

Most kids are good at counting forward, but counting backward is a different ball game. Practice counting down by filling in the blanks with the right numbers.