# Halving and Doubling

In Numeracy this week we have been practising our halving and doubling.  Choose a challenge below and have a go at halving and doubling the numbers.

Challenge 1:  10, 2, 16, 4, 14, 8

Challenge 2:   22, 18, 24, 26, 28, 20

Challenge 3:    30, 28, 40, 64, 50, 60, 84, 100

Challenge 4:    300, 450, 1000, 440, 280, 880, 2000

## 11 thoughts on “Halving and Doubling”

1. iyka says:

today this week in numacary we done all about halving and it was almost easy for us and we done lots of challenges like challenge 1,2,3,4 and we chose the challenges what we are good at thank you miss kirkham for planning this extremely funky numeracy this week.

2. navandeep says:

halving easy on challange 1 and challange 2 and challange 3 but challange 4 is a lit a bit hard.

3. 15th octobre today I have been doing harfing it was a bit hard but i afeshaly got it
by khushi

4. i also fgot that I dun challenge1 and 2 and 3 and4
by khushi

5. I am really glad that you have all been having a go at halving. If you have completed the challenges then please bring them in for us to check so that we can set you an even harder challenge or give you some more support. Thank you 🙂

6. I found it so easy to half and double but I might have a go at challange 3 now.
Serena

7. iyka says:

in halving we were having the doubling like if i had 1+1 that makes two and i had for halving is 2-1 and that makes one so you see it goes backwards because that means its halving and people mite being really good at halving and doubling.

8. harpreet says:

I found half and double easy also miss kirkham could you do a challenge
5? and i had filde my page!

9. muhammed says:

I really like the game dom even I like the light and dark.

10. Iyka says:

When we do halving and doubling it’s really easy cause we just get a number like 14+14=28 on the doubling side and then we half it and on the halving side we put 28-14=14 and that’s how you get the answer.

• bpsmisskirkham says:

Super explanation Iyka: make sure you teach all of your friends this strategy too!