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Conway Primary School

Key Stage 1

Question 1. The sum of two numbers is 19 and the difference of these two numbers is 3.

  • What are the two numbers? Is it a unique solution? Why?

Question 2. The sum of two numbers is 28 and the difference of these two numbers is 2.

  • What are the two numbers? Is it a unique solution? Why?

Question 3. I have 32 red socks. How many pairs of red socks do I have?

Question 4. I have 27 blue socks. How many pairs of blue socks do I have? What do you notice?

Question 5.  If I had 75 green socks would I have any left over after I have put the green socks in pairs?

  • What about 60 socks? 101 socks? Any left over after you have put them in pairs? How do you know?