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Represent the Composition of 10 Ones

Related Topics:
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 the composition of 10 ones as 1 ten with two-digit addends.

Common Core Standards: 2.NBT.2, 2.NBT.1, 2.NBT.3, 2.MD.8

New York State Common Core Math Grade 2, Module 4, Lessons 6

NYS Math Module 4 Grade 2 Lesson 6

Lesson 6 Homework

1. Solve using mental math if you can. Use your place value chart and number disks to solve those you cannot do mentally.
a. 4 + 9 = _____
30 + 9 = _____
34 + 9 = ______
34 + 49 = ______

2. Solve the following problems using your place value chart and number disks, composing a ten when necessary.
a. 21 + 9 = _____
22 + 9 = ______
i. 59 + 34 = _____

Solve using a place value chart.
3. Melissa has 36 more crayons than her brother. Her brother has 49 crayons. How many crayons does Melissa have?

5. Frank’s mother gave him $25 to save. If he already had $38 saved, how much money does Frank have saved now?

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
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