Positive and negative numbers

In this problem, we're investigating the number of steps we would climb up or down to get out of or into the swimming pool. How could you number the steps below the water?

Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?

In this game, you can add, subtract, multiply or divide the numbers on the dice. Which will you do so that you get to the end of the number line first?

What numbers would you put on this number line as it goes under the sea level?

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

Some of the numbers have fallen off Becky's number line. Can you figure out what they were?

Imagine a very strange bank account where you are only allowed to do two things...

Different combinations of the weights available allow you to make different totals. Which totals can you make?

Do you notice anything about the solutions when you add and/or subtract consecutive negative numbers?