Mastery: Reasoning and Problem-Solving

Y1

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Place your counter on a number. Write it. Now hop along 2. Where do you end up? Write the addition. Repeat.
Place your counter on a number. Write it. Now hop back 2. Where do you end up? Write the subtraction. Repeat

Y2


In-depth Investigation
Y1: Number Balance
Can you hang weights in the right place to make the equaliser balance? Number Balance from nrich.maths.org.

Y2: Getting the Balance
If you hang two weights on one side of this balance, in how many different ways can you hang three weights on the other side for it to be balanced? Getting the Balance from nrich.maths.org.