This activity is about a frog who can add or take away numbers as it jumps!
We need to look at the numbers and work out what the frog is doing before calculating the missing numbers.
This is an adding frog.
Work out what he is adding and choose the right numbers for A and B.
This is an adding frog. He adds 1 to each number.
A = 23 and B = 25
Does that make sense?
Let's have a go at some questions now.