Grade 2 · Unit 1: Number and place value

Multiplying

Equal groups make multiplying easy.

Equal groups everywhere

Eggs are packed in rows of the same size. Equal rows and columns make an array. Counting arrays is quicker with multiplication.

Groups of

Here are 4 equal groups with 5 bananas in each. 5 + 5 + 5 + 5 = 20. We write 4 × 5 = 20. We say “4 times 5”.

Arrays

This array has 3 rows of 6. 3 × 6 = 18. Turn it round: 6 rows of 3 is also 18. 6 × 3 = 18!

Times tables for 2, 5 and 10

The 2 times table is counting in 2s. The 5 times table ends in 5 or 0. The 10 times table always ends in 0.

What I learnt

• I can make and describe equal groups.
• I can use arrays to multiply.
• I know the 2, 5 and 10 times tables.