Table of Contents
MA 01.NBT.C.6
Standard:
MA 01.NBT.C.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.
Standard Unpacked:
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.
70 - 10 =
30 - 10 =
50 - 20 =
70 - 30 =
Lesson Plans:
Resources:
Good Projects here: Illustrative Mathematics https://www.illustrativemathematics.org/1