First Grade Common Core Math 1 NBT.6 Place Value Word Problems 1.NBT.6 Practice provides two ways for students to practice solving place value word problems that include subtraction of multiples of 10 from multiples of 10.
It includes 40 distinct problems in two sets (129 slides in all!), with and without following answer slides. The PowerPoint file can be used on computers, or Promethean Activboard and Smart boards.
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Standard 1.NBT.6 Use place value understanding and properties of operations to add and subtract.
6. Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.