Worksheets and Whiteboard Resources for Elementary Math
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# Math Topics K 5 Number Sense

Grade 1 (1.NBT.A.1) Extend the counting sequence.

## Number Signs (1)

MEETS 1.NBT.A.1: Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.

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Grade 1 (1.NBT.C.6) Use place value understanding and properties of operations to add and subtract.

## 10 More or 10 Less

SUPPORTS 1.NBT.C.6: Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), 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 and explain the reasoning used.

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Grade 1 (1.OA.B.3) Understand and apply properties of operations and the relationship between addition and subtraction
Ages 6 - 7

## Caterpillar Chaos

EXTENDS 1.OA.B.3: Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)

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Grade 2 (2.NBT.A.1) Understand place value.
Ages 6 - 7

## Trunk Chunk

SUPPORTS 2.NBT.A.1: 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.

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Grade 2 (2.NBT.A.3) Understand place value.
Ages 7 - 8

## Number Signs

SUPPORTS 2.NBT.A.3: Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

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Grade 2 (2.NBT.B.7) Use place value understanding and properties of operations to add and subtract.
Ages 7 - 8

SUPPORTS 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.

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Grade 2 (2.NBT.B.7) Use place value understanding and properties of operations to add and subtract.
Ages 7 - 8

## Apple Picking

SUPPORTS 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.

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Grade 2 (2.OA.C.3) Work with equal groups of objects to gain foundations for multiplication.
Ages 6 - 7

## Odds And Evens

MEETS 2.OA.C.3: Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

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Grade 2 (2.OA.C.3) Work with equal groups of objects to gain foundations for multiplication.
Ages 6 - 7

## Odds And Evens

MEETS 2.OA.C.3: Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.