Always a multiple?
Think of a two digit number, reverse the digits, and add the numbers together. Something special happens...
Think of a two digit number, reverse the digits, and add the numbers together. Something special happens...
Imagine we have four bags containing numbers from a sequence. What numbers can we make now?
In these addition and subtraction games, you'll need to think strategically to get closest to the target.
I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?
Imagine we have four bags containing a large number of 1s, 4s, 7s and 10s. What numbers can we make?
Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
It's easy to work out the areas of most squares that we meet, but what if they were tilted?