Andrew decorated 20 biscuits to take to a party. He lined them up and put icing on every second biscuit and different decorations on other biscuits. How many biscuits weren't decorated?
You can make a calculator count for you by any number you choose.
You can count by ones to reach 24. You can count by twos to reach
24. What else can you count by to reach 24?
Find the squares that Froggie skips onto to get to the pumpkin patch. She starts on 3 and finishes on 30, but she lands only on a square that has a number 3 more than the square she skips from.
We had so many well-explained solutions to
this problem - thank you all very much.
Adeline told us:
Kaitlyn from Mason Middle School made a table
to help her:
Dylan from Oakland Township Elementary used a
similar method, but he explains how he used the number grid itself
to write on:
Thank you, Dylan.
Crossing out or circling the numbers as you go along can help you
keep track of what you're doing. Daniel from Engelfield Green
Infants School did this too. Here is what Daniel wrote:
Here is a picture of
Thank you again for all
your contributions to this problem. I'm afraid there are too many
to mention you all!