Lesson 5 - Subtracting Mentally
Wise Up - Try these mental math activities.
Tricks - Help the builder build the wall by filling in the values on the empty bricks. Choose Inverse Operations.
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Nelson EducationSchoolMathematics 4 West | |||
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Lesson 5 - Subtracting Mentally
Wise Up - Try these mental math activities. Tricks - Help the builder build the wall by filling in the values on the empty bricks. Choose Inverse Operations.
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