Addition Working out

1000+1000= 1000+1000=2000

1000+900= 1000+0=1000 100x9=900

1000+800= 1000+0=1000 400x2=800

1000+700= 1000+0=1000 100x7=700

1000+600= 1000+0=1000 100x6=600

1000+500= 1000+0=1000 100x5=500

1000+400= 1000+0=1000 100x4=400

1000+300= 1000+0=1000 100x3=300

1000+200= 1000+0=1000 100x2=200

1000+100= 1000+0=1000 100x1=100

Subtraction Working out

1000-1000= 1000-1000=1000

1000-900= 1000-900=100

1000-800= 1000-800=200

1000-700= 1000-700=300

1000-600= 1000-600=400

1000-500= 1000-500=500

1000-400= 1000-400=600

1000-300= 1000-300=700

1000-200= 1000-200=800

1000-100= 1000-100=900

Word problem.

Jacob has 200 lollies in his hand and his mum said jacob try and make 900 lollies today and then jacob said what mum I can’t make that much in one day we'll go and ask your friends if you can have some of theres.Next jacob went to go ask his friend suade that had 1000 lollies in his hand and then Jacob went over to him and asked suade if he can have 400 lollies to share out later with his family.Next jacob went to go and ask his other friend Israel that had 500 lollies in his pocket and then jacob came and asked Israel if he could have 300 more lollies and then israel gave him the lollies. 200+400=600 600+300=900