Jump Backwards in Tens

Freddie the frog loves jumping around on number lines. He always likes to make a clever number sequence. Use your finger to follow the jumps that he makes.

Example

Count the frog's jumps to work out missing numbers in the sequence.

Pop your finger on the first number, then follow the jumps. Are the numbers getting bigger or smaller? Is Freddie going backwards or forwards? Can you see a pattern? What could the missing number be? What could the next number be?

Answer

Freddie has jumped from 90 to 80, from 80 to 70 and from 70 to A.

He is jumping backwards ten each time. Did you spot that?

To work out our missing numbers, we need to count back (or subtract ten) from the previous number.

70 - 10 = 60

60 - 10 = 50

So we can see that:

A = 60

B = 50

Let's get jumping and see if we can find the missing numbers in these questions.