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CCSS 2.NBT.1A Worksheets

CCSS 2.NBT.1A (Common Core, 2nd Grade): "100 can be thought of as a bundle of ten tens - called a "hundred."." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.

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Number and Operations in Base Ten Understand place value. 1Understand 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: a100 can be thought of as a bundle of ten tens - called a "hundred."

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Creating Groups of 100

2nbt1a

Count by tens to find how many items are in a set of ten-bundles.
Use groups of ten to make and recognize 100 as 10 tens.

CCSS 2.NBT.1A Worksheets - Identifying Quantity with 100 blocks. worksheet

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Identifying Quantity with 100 blocks.

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Read base-ten block pictures and tell how many hundreds, tens, and ones they show.
Break a number into hundreds, tens, and ones to explain what each digit means.
Count groups of 100s, 10s, and 1s without counting every single block one by one.