We have been working on a variety of strategies during our number operations unit. We are getting really good at using;
– “breaking up the numbers” 63+22 = 80+5 = 85
– fact families (I know 25+25 =50 so I also know 50-25=25)
This morning we worked on the concept of regrouping in subtraction.
Photo taken from kidsmathblog.com
Grade 3’s can you answer 73-57= using this strategy? Show your parents! (Don’t forget to line up your ones and tens when you write the question down.)
For an extra challenge, try answering 203-168= at home. If you get it, let me know what your answer is. I know you can do it!