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Know Your Numbers: Jump Forward in Twos

In this worksheet, students will count forward in twos and work out the missing numbers in a given sequence.

'Know Your Numbers: Jump Forward in Twos' worksheet

Key stage:  KS 1

Year:  Year 2 Maths worksheets

Curriculum topic:   Number: Number and Place Value

Curriculum subtopic:   Count in Steps (2, 3, 5 and 10)

Popular topics:   Ordering Numbers worksheets

Difficulty level:  

Worksheet Overview

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.


a frog



Count the frog's jumps to work out the 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 next number be?



11 13 15 a b

Look at the sequence of numbers above. 


Freddie has started on number 11 and jumped on to 13. Has he gone backwards or forwards? 13 is a bigger number than 11, so he has jumped forwards.


Has he jumped in ones, twos, threes or what number? If he had jumped in ones, he would have landed on the number after 11, which is 12. He has actually landed on the number 13, so he has jumped two numbers.


So, in the sequence above, Freddie has jumped forwards two numbers.


The final numbers have not been written in - the letters a and b are there instead. What numbers should be in those spaces? 

The missing numbers are 17 and 19, so a = 17 and b = 19.


In the questions that follow, you need to work out whether Freddie has jumped forwards or backwards and by how many numbers. You will then be asked to work out what the missing numbers in the sequence might be.


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