Fully multiplicative basic facts partitioning attracted students of equal ability to place value partitioning.

Using fully multiplicative doubling and halving, or a mix of multiplicative and additive strategies (Number Framework Stage 6).

Using doubling strategies involving some addition (Number Framework Stage 6).

Using only repeated addition (Number Framework Stage 5). Skip counters were of similar mean ability as repeated adders for this resource.

Using only array diagrams (Number Framework Stage 3).

a) 20

c) 660 or 720

The student adds instead of multiplying.

Students may have a reading issue. Ask the students to read the question out loud.

a) 88 or 104

(11 or 13 groups of 8)

c) 22 or 24

The student uses skip counting or repeated addition, but counts one group short or one group too many.

Encourage these students to record their tallies in a consistent manner. The student needs to then move on to part-whole strategies (e.g., 12 x 8 = 10 x 8 + 2 x 8). Click on the resource How many are there? for student work samples and more information about strategies.