Curriculum>Grade 1> Module 2>Topic C: Varied Problems with Decompositions of Teen Numbers as 1 Ten and Some Ones

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Using base 10 number cubes that are arranged in tens and ones columns to reflect the first addend, you will add number cubes to the ones column equal to the second addend. After you add the number cubes, you then identify the final sum

A. Solve substraction equations that include the number 10

B. Complete equations that add or subtract all tens or all ones with and without a model of base-10 blocks

D. Subtract from numbers 11-20 using base-10 blocks

E. Solve +/- equations that use numbers in the second ten and a single-digit number (Part 1)