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1.16 Subtraction: two-digit and two-digit numbers


Created on 08 March 2018 by ncetm_administrator
Updated on 09 March 2018 by ncetm_administrator

Introduction

Build on segments 1.13 and 1.14 to equip children with useful strategies for subtraction of one two-digit number from another, partitioning two-digit numbers into tens and ones before calculation.

Teaching points

  • Teaching point 1: Known strategies can be used to subtract a multiple of ten and a single-digit number from a two-digit number.
     
  • Teaching point 2: A two-digit number can be subtracted from a two-digit number by partitioning the subtrahend into tens and ones.
     

 
 

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