Add 1s Across a 10

Differentiated worksheets designed to assist learners with the mental addition strategy of partitioning ones into helpful parts to reach and bridge a three-digit number. The worksheets utilize the part-part-whole model to partition the ones, allowing students to discover the number bond to ten, which in turn helps them arrive at the next ten. By adding the remaining part, students can find the final answer.

The worksheets are differentiated into four levels, (I use them with my year 3 class) catering to learners’ varying abilities. Additionally, each set includes five large sheets, ideal for small group teaching.

Next Step: Add 10s across a 100 Number Line Worksheets