Maths
Today we will be looking at subtracting 9, 10 and 11 from numbers up to 100.
You will need a 100 square to help you with this. If you do not have one, why not have a go at making your own on a piece of paper.
Subtracting 10:
Find the number on the 100 square. Instead of doing ten little jumps back, remember you can do one big spider jump to the number above and that is 10 less.
Subtracting 11:
Find the number on the 100 square. Instead of doing ten little jumps back, remember you can do one big spider jump to the number above and that is 10 less. As you are taking away 11, do one more little jump back.
Subtracting 9:
Find the number on the 100 square. Instead of doing ten little jumps back, remember you can do one big spider jump to the number above and that is 10 less. As you are only taking away 9, add one more back on.
Have a go at practising this with the chilli challenges below. If you complete them, you could make up some more of your own number sentences.
