Subtraction Surprise
Try out these calculations. Are you surprised by the results?
Try out these calculations. Are you surprised by the results?
In these addition and subtraction games, you'll need to think strategically to get closest to the target.
Use your knowledge of place value to try to win this game. How will you maximise your score?
In each of these games, you will need a little bit of luck and your knowledge of place value to develop a winning strategy.
Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?
What happens when you add a three digit number to its reverse?
Take any four digit number. Move the first digit to the end and move the rest along. Now add your two numbers. Did you get a multiple of 11?
There are lots of ideas to explore in these sequences of ordered fractions.