Exploring and noticing

Use five steps to count forwards or backwards in 1s or 10s to get to 50. What strategies did you use?

This challenge encourages you to explore dividing a three-digit number by a single-digit number.

In this calculation, the box represents a missing digit. What could the digit be? What would the solution be in each case?

Have a go at balancing this equation. Can you find different ways of doing it?

What happens when you round these three-digit numbers to the nearest 100?

This activity involves rounding four-digit numbers to the nearest thousand.

Can you work out some different ways to balance this equation?

Can you complete this calculation by filling in the missing numbers? In how many different ways can you do it?

How many times a day does a 24 hour digital clock look the same when reflected in a horizontal line?

One year there were exactly four Tuesdays and four Fridays in October. On what day of the week was Halloween.