Composing Tens with Manipulatives
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Common Core Math Resources, Lesson Plans & Worksheets for all grades
Common Core Math Lessons, Math Worksheets and Games for Grade 2
Common Core Math Lessons, Math Worksheets and Games for all grades
Examples and solutions to help Grade 2 students learn how to use manipulatives to represent additions with two compositions.
Common Core Standards: 2.NBT.6, 2.NBT.7, 2.NBT.8, 2.NBT.9
New York State Common Core Math Grade 2, Module 4, Lesson 18
NYS Math Grade 2, Module 4, Lesson 18
Concept Development
Problem 1: 40 + 70
Problem 2: 49 + 73
Problem 3: 136 + 64
Application Problem
Hailey and Gio solve 56 + 85. Gio says the answer is 131. Hailey says
the answer is 141. Explain whose answer is correct using numbers,
pictures, or words.
Lesson 18 Homework
- Solve using your place value chart and number disks.
a. 20 + 90 = ________ 60 + 70 = _________
b. 29 + 93 = ________ 69 + 72 = _________
c. 45 + 86 = ________ 46 + 96 = _________
d. 47 + 115 = ________ 47 + 95 = _________
e. 28 + 72 = ________ 128 + 72 = _________ - Circle the statements that are true as you solve each problem using place value disks.
- Solve the problem using your number disks and fill in the missing total. Then, write an addition sentence that relates to the number bonds.
- Solve using your place value chart and place value disks.
a. 45 + 55 = ________
b. 78 + 33 = ________
c. 37 + 84 = ________
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