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Subjects: math,mathElementary,operationsAndAlgebraicThinking,additionAndSubtraction,backToSchool
Grades: 2,3,4
Subtracting 100 from numbers below 1000. The input/output chart follows the rule minus 100. Ontario, Canada Curriculum Grade 3 – B2.3 – Use mental math strategies, including estimation, to add and subtract whole numbers that add up to no more than 1,000, and explain the strategies used.
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