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

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Students will add 2-digit numbers together by breaking the problem into two equations: adding ones to ones and tens to tens. Students then add the sums of those equations to solve for the total

A. Review adding ones to 2-digit numbers

B. Review adding tens to 2-digit numbers

C. Identify tens from a group of numbers and label place value of 2-digit numbers

D. Break down 2-digit numbers into tens and ones

E. Use place value charts with base-10 blocks to add two 2-digit numbers

G. Mentally solve 2-digit addition problems

H. Use place value charts with base-10 blocks to add 2-digit numbers, including regrouping

I. Review adding 1- and 2-digit numbers

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