Lesson plan

Subtraction Masters

Your students will be experts in subtraction with regrouping after this lesson that has them work as a class and individually to perfect their skills.
Grade Subject View aligned standards

Students will be able to solve subtraction problems with two-digit numbers.

(10 minutes)
  • Tell students that today you are going to teach them how to subtract two-digit numbers.
  • Think of a short word problem that uses subtraction with two-digit numbers. For example: 36 children are out on the playground. A teacher comes out and calls 17 of them back in. How many children are left on the playground?
  • Solve this problem on the board by lining up the place values and using regrouping to break up the digit in the tens place to create enough ones to subtract.
(15 minutes)
  • Display the Subtraction with Borrowing: Honeybees! worksheet and work through the problems, showing your students every step as you go.
  • Answer any student questions that come up while you're working.
(15 minutes)
  • Pass out the Solve a Subtraction Lineup Challenge worksheet.
  • Go through the first couple of problems if you feel your class needs the extra support.
(20 minutes)
  • Have students complete the worksheet independently.
  • Walk around the classroom as they work to answer questions and assist as needed.
  • Enrichment: Give advanced students multiple step problems, such as Sweet Treat Math Word Problems worksheet, to complete.
  • Support: Give struggling students one-on-one support or pair them with a peer mentor. If students need extra practice with their subtraction facts, have them pair up and practice with the Subtraction War activity.
(15 minutes)
  • Check for correctness of the given worksheet.
  • Pass out an index card and give students one or two problems on the board for them to solve.
  • Collect the index cards as an exit ticket.
(15 minutes)
  • Have students pair-and-share something they learned today and something they still need help with.
  • Have students share partner responses with the class.
  • Answer and questions students may have.

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