Missing Keys on a Calculator


Posted by Miss Forscutt | Posted in Addition, Division, Four Operations, Multiplication, Number, Subtraction | Posted on December 3, 2014

This is an opened ended activity, allowing students to use the four operations. Students read the problem and record all the ways that they try to solve it.


Sally was making numbers on her calculator but the keys for the number 6 and the number 7 were broken.

Sally wanted to display the number 467 in the calculator’s window.

How many ways can you make 467 on the calculator if the 6 and the 7 keys are broken?

Example of a solution:

400 + 30 + 30 + 4 + 3 = 467

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