Strategy 1 - Stranded Place Value
Strategy 2 - Tidy numbers same compensation.
Strategy 3- Increase and decrease
Strategy 4- Place Value Partitioning
Strategy 5- Combine compatible Numbers
Strategy 6- Use algorithm
Ten bottles of water have 550 litres, another five bottles have 450 litres and the last bottle of water have 8000 litres. How many litres were there altogether?
550+ 8,000 + 450
= (550+450)+ 8,000
= 8,000+1,000
= 9,000 litres of water
Can you guess which strategy I used?
