DMIC
DEVELOPING MATHEMATICAL INQUIRY COMMUNITIES
INDEPENDENT TASKS
SUBTRACTION
Massey University, DMIC inquiry team.
Students work on 1-2 independent tasks each day and select which to complete over the week.
Easy (copy one at a time and create slides to follow to show your working out)
1. At Andrew’s haircutting ceremony there were 123 people. There were 86 adults and the rest were children. How many children were at the haircutting ceremony?
2. Sivaenah has some flowers. She used 43 flowers to decorate her church. Now she has 29 flowers left for her home. How many flowers did Sivaenah start with?
3. Kauri was collecting stickers. He used 58 stickers to decorate a book. Now only 33 are left. How many stickers did Kauri start with in his collection?
4. Leilani lost 27 marbles when she was challenging her cousin. She had 90 to start with. How many marbles does she have now?
Easy Post your selected question below and show working. Publish just this slide on your blog each time you finish a task.
The question I’ve selected:
My working out:
Main learning from this:
Middle (copy one at a time and create slides to follow to show your working out)
1. Mum ordered 212 Tipani flowers to make ‘ei katu. She used some flowers to make the ‘ei katu. Now she has 135 left. How many flowers did she use?
2. Antzel’s rugby team scored 422 points for the season. They scored 114 points more than the next closest team. What did the other team score for the season?
3. Mum bought 32.1 metres of material to make Cook Island dance costumes. She used 28.25 metres of material. How much material did she have left?
4. Siosiua and his friends made 343 bracelets to sell at the Pasifika Festival. They sold 264. How many bracelets were left?
Middle Post your selected question below and show working. Publish just this slide on your blog each time you finish a task.
The question I’ve selected:
My working out:
Main learning from this:
Hard (copy one at a time and create slides to follow to show your working out)
1. Martha measured 6.34 m of material to make 2 mumu. She cut 2.49 m for one mumu. How much material does she have left?
2. Rewi’s mum was sewing feathers onto the korowai. She uses a bag of black and white feathers which is 5/8 full. She uses 1/2 of the feathers. What fraction of the bags of feathers does she have left?
3. Maria is making an ‘ei katu to wear for her birthday celebration with flowers. She has a basket of flowers which is 3/4 full. She uses 2/3 of the flowers in the basket. What fraction of flowers does she have left in the basket?
4. Sione’s water bottle holds 1.65 litres. He drank 0.97 litres. How much water is left in his bottle?
Hard Post your selected question below and show working. Publish just this slide on your blog each time finish a task.
The question I’ve selected:
My working out:
Main learning from this: