Unit 16 – Count and calculate
4 x 1 =
Try these calculations on a calculator. 4 × 1 = 7 × 1 = 3 × 1 = 1 0 × 1 =
1 × 2 = 1 × 8 = 1 × 1 0 =
1 × 5 = 1 × 1 =
Hmm. I will make a shape with rows and columns.
What do you notice? Can you explain? Use equipment or pictures to explain your ideas.
4 × 2 means 4 groups of 2, so 4 × 1 means …
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