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Unit 1, Lesson 2

Counting by 10s

North Carolina Department of Public Instruction 54 min(s)

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Other lessons from Unit 1 in Grade 2 by North Carolina Department of Public Instruction

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Unit 1, Lesson 1

Counting Objects by Groups

North Carolina Department of Public Instruction

Next Lesson

Unit 1, Lesson 3

Solving Story Problems

North Carolina Department of Public Instruction

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Unit 2, Lesson 1

Race to 200

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3 Content Standards are aligned with this lesson

2.NBT.B.7
2.NBT.B.8
2.NBT.B.9

Major StandardsSupporting StandardsAdditional Standards

Standard 2.NBT.B.7

Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.

Part of Major Cluster 2.NBT.B

This lesson is aligned to numerous standards.

Prerequisites for 2.NBT.B.7

2nd Grade

Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:

100 can be thought of as a bundle of ten tens - called a "hundred."

The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).

Upcoming Standards for 2.NBT.B.7

2nd Grade

Add up to four two-digit numbers using strategies based on place value and properties of operations.

3rd Grade

Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

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