We are working on our mathematical operations right now in Grade 3. We often start our class with a warm-up where one student will write a three-digit number 'answer' on the board, and the students are responsible for sharing a 'question' that will equal that number. Students are able to use whatever operations they like (plus, minus, times, and dividing), and lately I've been asking them to use at least two different ones.
Students are starting to use dividing and multiplication more and more in their questions, which is great. Feel free to have your students give you some ways to get to any three-digit number using plus, minus, times, and dividing. Here are some examples for 405 and 955:
We are also working this year towards being able to add and subtract three-digit numbers. We are learning some mental strategies for subtraction right now, and we will be learning the traditional algorithm as well eventually.
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