Curriculum>Grade 1> Module 4>Topic E: Addition of Tens and Ones to a Two-Digit Number

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You will be using base 10 number cubes for this activity. You will be adding pairs two-digit numbers together. The maximum value of these sums will be 40

B. Solve 2-digit addition equations within 40 with and without modeling with base-10 blocks

C. Solve 2-digit addition equations with exchanging by adding tens and ones separately

D. Solve 2-digit addition equations

E. Model and solve 2-digit addition equations with exchanging using base-10 blocks (Part 1)

F. Model and solve 2-digit addition equations with exchanging using base-10 blocks (Part 2)

G. Solve 2-digit addition equations with exchanging by adding tens and ones separately

H. Solve equations that add two-digit numbers across a 10

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