Using groups of 10 and 100 to solve number problems
This unit contains a range of activities using groups of 10 and 100 to solve two and three digit addition and subtraction problems. In the first 4 activities students must break numbers within a problem into three parts to be solved using groupings of 10 and 100. The following 4 pages ask students to work out number problems in two different ways, noting their working in each case. An example of what is expected is given. In the final activity a banner flying from a plane breaks a problem into three parts to be solved using groupings of 10 and 100.
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