LEGO Addition & Subtraction

Take one handful of Lego blocks and create a number. 

Take another handful of Lego blocks and create another number. 

Write a number sentence and solve it using your Lego blocks. 

Challenge: can you use tens and ones in your answer?

 Show some Lego blocks to your partner/group. 

Then everyone except one closes their eyes. The one person with their eyes open picks some to hide behind their back and tells their friends to open their eyes. 

Their friends guess how many are hiding behind their back based on how many are left. 

Everyone rolls 2 die. They use the die to make a 2 digit number using Lego blocks. 

When everyone has created their tower students take it in turns to roll the die and subtract that from the number. 

Decide if you will roll one dice to subtract a 1-digit number or 2 die to subtract a 2-digit number.

Then, you will need a piece of squared paper or whiteboard to record your working out. Roll the die until you have nothing left of the blocks. The first person with no blocks is the winner!